Update earthpy to 0.9.4

[pyup-bot]

This PR updates earthpy from 0.7.4 to 0.9.4.

Changelog

0.9.4

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- Updated Changelog with missing entries (nkorinek, 740)

0.9.3

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- Updated linting test to run black and flake8 (aefitts, 715)
- Updated crs_check with better error handling (nkorinek, 711)
- Added function crs_check to get the crs from a raster's file path (nkorinek, 707)
- Modified `plot_rgb()` to handle NAN values better, allowing plotting of Xarray dataarrays (nkorinek, 693)
- Small fixes for default parameter values in docstrings (FaranIdo, no issue submitted - PR 652)

0.9.2

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-  NOTE slight glitch migrating to the new version of bump version, hence bumped to 9.2
-  Update crop_image docstring to be more specific, remove read() from example (bmcandr, 483)
-  Fixed a bug in `stack()` that was masking arrays unnecessarily (nkorinek, 493)
-  Added dataset for cropped NAIP data (nkorinek, 561)
-  Added fix for downloads with quotes around them (nkorinek, 560)

0.9

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-  Removed m2r as a dependency (nkorinek, 527)
-  Add flake 8 (lwasser, 519)
-  Remove conda envt for RTD build (lwasser, 518)
-  Deprecate clip function from earthpy given it’s moved to geopandas
now (nkorinek, 510)
-  Fix twitter flood data key in get_data (lwasser, 512)
-  Added new landsat data as a download option to get_data (nkorinek)
-  Fix clip vignette. Can't plot w empty geoms (lwasser, 475)

0.8

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-  JOSS paper and pyopensci review completed release!

0.7.6

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-  no significant changes but pyopensci approval and badge added.

0.7.5

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-  Changed variable name for ``angle_altitude`` to ``altitude`` in
``hillshade()`` (nkorinek, 436)
-  Added alpha arguments to ``hist()`` and ``plot_bands()`` (nkorinek,
409, 410)
-  Add vignette to download data from URLs and EarthPy using
``data.get_data()`` function (jlpalomino, 396)

Links

• PyPI: https://pypi.org/project/earthpy
• Changelog: https://pyup.io/changelogs/earthpy/
• Repo: https://github.com/earthlab/earthpy