typing for kwargs

[Borda]

What does this PR do?

Not sure if I miss something, but maybe we have wrong the typing for kwargs as the Dict[str, Any] is meant for the structure, so each element is Any
I came to this thinking while fixing typing for #1069
See for reference: Type annotations for *args and **kwargs

Before submitting

• Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[codecov]

Codecov Report

Merging #1078 (b04971b) into master (0a5d964) will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master   #1078   +/-   ##
======================================
  Coverage      95%     95%           
======================================
  Files         181     181           
  Lines        8085    8085           
======================================
  Hits         7654    7654           
  Misses        431     431