ci: add snapcraft.yaml #1426

Job	Run time
Get Release Info	6s
Generate test coverage	16m 46s
Build Chainhook Distributions (ubuntu-latest, linux, x86_64-unknown-linux-gnu, x64, glibc)	11m 14s
Build Chainhook Distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	19m 15s
Build Chainhook Distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	8m 30s
Build Chainhook Distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	8m 42s
build-publish (Chainhook, Chainhook is a reorg-aware indexing engine for the Stacks & Bitcoin blo...	15m 13s
Release	0s
deploy-dev (mainnet)	1s
deploy-dev (testnet)	1s
auto-approve-dev	0s
deploy-staging	1s
auto-approve-stg	1s
deploy-prod	1s
	1h 19m 51s

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