sync static analysis tooling with pystac and stactools

[philvarner]

Related Issue(s): #172

Description:

• replace existing static analysis and lint tooling (e.g., yapf) with the standard python stac tooling from pystac and stactools (e.g., black, mypy, etc)

PR Checklist:

• Code is formatted
• Tests pass
• Changes are added to the CHANGELOG

[codecov-commenter]

Codecov Report

Merging #183 (c49cd02) into main (0519077) will decrease coverage by 0.02%.
The diff coverage is 82.95%.

@@            Coverage Diff             @@
##             main     #183      +/-   ##
==========================================
- Coverage   82.60%   82.57%   -0.03%     
==========================================
  Files           9        9              
  Lines         592      597       +5     
==========================================
+ Hits          489      493       +4     
- Misses        103      104       +1     

Impacted Files	Coverage Δ
pystac_client/cli.py	61.86% <72.05%> (+0.12%)	⬆️
pystac_client/stac_api_io.py	82.24% <80.76%> (ø)
pystac_client/item_search.py	90.77% <88.23%> (+0.03%)	⬆️
pystac_client/__init__.py	100.00% <100.00%> (ø)
pystac_client/client.py	80.00% <100.00%> (ø)
pystac_client/collection_client.py	86.66% <100.00%> (+0.95%)	⬆️
pystac_client/conformance.py	100.00% <100.00%> (ø)
pystac_client/version.py	100.00% <100.00%> (ø)

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[philvarner]

@gadomski @matthewhanson this is ready for review now

[gadomski]

One minor script change requested. I did my best to look through the .py diffs, but I'll be honest I didn't scan them all -- I assume that there were no functional changes, that the diff noise was from applying the formatters.