fix(api): When a mutation response code indicates client error only call onFailure

[millsjustin]

• PR title and description conform to Pull Request guidelines.

Currently if a mutation response code indicates a client error (i.e. code >= 400 && code <= 499), both the onFailure and onResponse callbacks are called.

This is problematic when the mutate call is wrapped in a Kotlin coroutine (i.e. like the Kotlin facade), because the continuation resumes with exception when onFailure is called and will throw an exception when attempting to resume without exception.

This PR returns immediately after calling onFailure to avoid calling both callbacks. It also adds a test to ensure both callbacks are not called.

How did you test these changes?
Added unit test

• Added Unit Tests
• Added Integration Tests

Documentation update required?

• No
• Yes (Please include a PR link for the documentation update)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Merging #2255 (82c235b) into main (f81521f) will increase coverage by 0.03%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##             main    #2255      +/-   ##
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+ Coverage   41.44%   41.47%   +0.03%     
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  Files         874      874              
  Lines       27643    27643              
  Branches     3883     3883              
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+ Hits        11457    11466       +9     
+ Misses      14959    14949      -10     
- Partials     1227     1228       +1