Fix for #56716: Use assert_produces_warning instead of pytest.raises to show FutureWarning

[pmhatre1]

• [1] closes CLN: Use assert_produces_warning instead of pytest.raises to show FutureWarning #56716
• [2] All code checks passed.
• [3] Replaced FutureWarning using pytest: pytest.raises(FutureWarning, match=msg):
  with tm.assert_produces_warning

[pmhatre1]

I solved my earlier PR on my main branch which is still open and updated all the code to this branch during commit. I will be careful hereon to create branches for new feature/bug. Any help so that the code in my main branch won't be reflected here.I am new and currently learning git.

[mroeschke]

Closed by #56974