Release 0.2.1

[aniketmaurya]

Before submitting

• Was this discussed/agreed 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?

What does this PR do?

bump version to 0.2.1 to enable default batch-unbatch

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?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82%. Comparing base (a65fadf) to head (3356b33).
Report is 1 commits behind head on main.

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #221   +/-   ##
===================================
  Coverage    82%    82%           
===================================
  Files        13     13           
  Lines      1048   1048           
===================================
  Hits        855    855           
  Misses      193    193