Bump black from 19.10b0 to 20.8b1 in /requirements

Bumps [black](https://github.com/psf/black) from 19.10b0 to 20.8b1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/master/CHANGES.md)
- [Commits](https://github.com/psf/black/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/requirements-ci.txt

@@ -14,15 +14,15 @@ appdirs==1.4.3            # via -r requirements-dev.txt, black
 asn1crypto==1.3.0         # via -r requirements-dev.txt, coincurve
 astroid==2.4.2            # via -r requirements-dev.txt, pylint
 astunparse==1.6.2         # via -r requirements-dev.txt, sphinxcontrib-httpexample
-attrs==19.3.0             # via -r requirements-dev.txt, automat, black, flake8-bugbear, hypothesis, jsonschema, matrix-synapse, pytest, service-identity, treq, twisted
+attrs==19.3.0             # via -r requirements-dev.txt, automat, flake8-bugbear, hypothesis, jsonschema, matrix-synapse, pytest, service-identity, treq, twisted
 automat==0.7.0            # via -r requirements-dev.txt, twisted
 av==8.0.2                 # via -r requirements-dev.txt, aiortc
 babel==2.7.0              # via -r requirements-dev.txt, sphinx
 backcall==0.1.0           # via -r requirements-dev.txt, ipython
 base58==2.0.0             # via -r requirements-dev.txt, multiaddr
 bcrypt==3.1.6             # via -r requirements-dev.txt, matrix-synapse
 bitarray==1.2.1           # via -r requirements-dev.txt, eth-account
-black==19.10b0            # via -r requirements-dev.txt
+black==20.8b1             # via -r requirements-dev.txt
 bleach==3.1.4             # via -r requirements-dev.txt, matrix-synapse, readme-renderer
 bump2version==1.0.0       # via -r requirements-dev.txt
 cachetools==4.1.1         # via -r requirements-dev.txt
@@ -84,7 +84,7 @@ jinja2==2.10.1            # via -r requirements-dev.txt, flask, matrix-synapse,
 jsonschema==3.2.0         # via -r requirements-dev.txt, matrix-synapse, web3
 lazy-object-proxy==1.4.1  # via -r requirements-dev.txt, astroid
 lru-dict==1.1.6           # via -r requirements-dev.txt, web3
-macholib==1.14            # via -r requirements-ci.in, pyinstaller
+macholib==1.14            # via -r requirements-ci.in
 markupsafe==1.1.1         # via -r requirements-dev.txt, jinja2
 marshmallow-dataclass==8.0.0  # via -r requirements-dev.txt
 marshmallow-enum==1.5.1   # via -r requirements-dev.txt
@@ -96,7 +96,7 @@ mccabe==0.6.1             # via -r requirements-dev.txt, flake8, pylint
 mirakuru==2.1.2           # via -r requirements-dev.txt
 msgpack==0.6.1            # via -r requirements-dev.txt, matrix-synapse
 multiaddr==0.0.9          # via -r requirements-dev.txt, ipfshttpclient
-mypy-extensions==0.4.3    # via -r requirements-dev.txt, mypy, raiden-contracts, typing-inspect
+mypy-extensions==0.4.3    # via -r requirements-dev.txt, black, mypy, raiden-contracts, typing-inspect
 mypy==0.782               # via -r requirements-dev.txt
 netaddr==0.7.19           # via -r requirements-dev.txt, matrix-synapse, multiaddr
 netifaces==0.10.9         # via -r requirements-dev.txt, aioice
@@ -184,7 +184,7 @@ traitlets==4.3.2          # via -r requirements-dev.txt, ipython
 treq==18.6.0              # via -r requirements-dev.txt, matrix-synapse
 twisted[tls]==20.3.0      # via -r requirements-dev.txt, matrix-synapse, treq
 typed-ast==1.4.0          # via -r requirements-dev.txt, black, mypy
-typing-extensions==3.7.4.3  # via -r requirements-dev.txt, matrix-synapse, mypy, signedjson
+typing-extensions==3.7.4.3  # via -r requirements-dev.txt, black, matrix-synapse, mypy, signedjson
 typing-inspect==0.4.0     # via -r requirements-dev.txt, marshmallow-dataclass
 unpaddedbase64==1.1.0     # via -r requirements-dev.txt, matrix-synapse, signedjson
 urllib3==1.25.3           # via -r requirements-dev.txt, requests

requirements/requirements-dev.in

@@ -18,7 +18,7 @@ isort
 readme-renderer
 pylint
 mypy
-black==19.10b0
+black==20.8b1
 
 # Testing
 pytest

requirements/requirements-dev.txt

@@ -13,15 +13,15 @@ appdirs==1.4.3            # via black
 asn1crypto==1.3.0         # via -r requirements.txt, coincurve
 astroid==2.4.2            # via pylint
 astunparse==1.6.2         # via -r requirements-docs.txt, sphinxcontrib-httpexample
-attrs==19.3.0             # via -r requirements.txt, automat, black, flake8-bugbear, hypothesis, jsonschema, matrix-synapse, pytest, service-identity, treq, twisted
+attrs==19.3.0             # via -r requirements.txt, automat, flake8-bugbear, hypothesis, jsonschema, matrix-synapse, pytest, service-identity, treq, twisted
 automat==0.7.0            # via twisted
 av==8.0.2                 # via -r requirements.txt, aiortc
 babel==2.7.0              # via -r requirements-docs.txt, sphinx
 backcall==0.1.0           # via ipython
 base58==2.0.0             # via -r requirements.txt, multiaddr
 bcrypt==3.1.6             # via matrix-synapse
 bitarray==1.2.1           # via -r requirements.txt, eth-account
-black==19.10b0            # via -r requirements-dev.in
+black==20.8b1             # via -r requirements-dev.in
 bleach==3.1.4             # via matrix-synapse, readme-renderer
 bump2version==1.0.0       # via -r requirements-dev.in
 cachetools==4.1.1         # via -r requirements.txt
@@ -38,7 +38,7 @@ coverage==5.3             # via -r requirements-dev.in
 crc32c==2.0               # via -r requirements.txt, aiortc
 cryptography==2.9.2       # via -r requirements.txt, aiortc, pyopenssl, service-identity
 cytoolz==0.10.1           # via -r requirements.txt, eth-keyfile, eth-utils
-decorator==4.4.2          # via -r requirements.txt, ipython, traitlets
+decorator==4.4.2          # via ipython, traitlets
 docutils==0.14            # via -r requirements-docs.txt, readme-renderer, sphinx, sphinxcontrib-httpexample
 eth-abi==2.1.0            # via -r requirements.txt, eth-account, raiden-contracts, web3
 eth-account==0.5.3        # via -r requirements.txt, web3
@@ -94,7 +94,7 @@ mccabe==0.6.1             # via flake8, pylint
 mirakuru==2.1.2           # via -r requirements.txt
 msgpack==0.6.1            # via matrix-synapse
 multiaddr==0.0.9          # via -r requirements.txt, ipfshttpclient
-mypy-extensions==0.4.3    # via -r requirements.txt, mypy, raiden-contracts, typing-inspect
+mypy-extensions==0.4.3    # via -r requirements.txt, black, mypy, raiden-contracts, typing-inspect
 mypy==0.782               # via -r requirements-dev.in
 netaddr==0.7.19           # via -r requirements.txt, matrix-synapse, multiaddr
 netifaces==0.10.9         # via -r requirements.txt, aioice
@@ -177,7 +177,7 @@ traitlets==4.3.2          # via ipython
 treq==18.6.0              # via matrix-synapse
 twisted[tls]==20.3.0      # via matrix-synapse, treq
 typed-ast==1.4.0          # via black, mypy
-typing-extensions==3.7.4.3  # via -r requirements.txt, matrix-synapse, mypy, signedjson
+typing-extensions==3.7.4.3  # via -r requirements.txt, black, matrix-synapse, mypy, signedjson
 typing-inspect==0.4.0     # via -r requirements.txt, marshmallow-dataclass
 unpaddedbase64==1.1.0     # via matrix-synapse, signedjson
 urllib3==1.25.3           # via -r requirements-docs.txt, -r requirements.txt, requests