Add args/kwargs to StacIO.read_json

[duckontheweb]

Related Issue(s): #

• Closes StacIO.read_json should accept *args and **kwargs #411

Description:

Adds *args and **kwargs parameters to StacIO.read_json and passes them to StacIO.read_text.

PR Checklist:

• Code is formatted (run scripts/format)
• Tests pass (run scripts/test)
• This PR maintains or improves overall codebase code coverage.
• Changes are added to the CHANGELOG. See the docs for information about adding to the changelog.

[codecov-commenter]

Codecov Report

Merging #433 (14522fc) into main (8946c9b) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #433   +/-   ##
=======================================
  Coverage   89.56%   89.56%           
=======================================
  Files          39       39           
  Lines        5115     5115           
=======================================
  Hits         4581     4581           
  Misses        534      534           

Impacted Files	Coverage Δ
pystac/stac_io.py	72.46% <100.00%> (ø)

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