Fixes grouped rank bug with nullable types.
- [x] closes #54206
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [x] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

@rhshadrach sir, I have made all the suggested changes, can you once quickly review. @rhshadrach sir, I have made all the suggested changes, and all the tests have passed. Please check now, Thank you. @rhshadrach sir, I made the required changes and all the tests are passing, Can you please check now, Thank you. Thanks @Sai-Suraj-27 