[Backport maintenance/3.3.x] Also undeprecate optparse

[github-actions]

Backport acf7705 from #10215.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.84%. Comparing base (a3f9b7c) to head (ec8a0f4).
Report is 24 commits behind head on maintenance/3.3.x.

Additional details and impacted files

@@                Coverage Diff                 @@
##           maintenance/3.3.x   #10216   +/-   ##
==================================================
  Coverage              95.84%   95.84%           
==================================================
  Files                    174      174           
  Lines                  18980    18980           
==================================================
  Hits                   18191    18191           
  Misses                   789      789           

Files with missing lines	Coverage Δ
pylint/checkers/imports.py	94.86% <ø> (ø)

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