Replace Any in optparse

[srittau]

The first commit replaces some Anys with the correct type and should probably be reviewed in isolation.

The second commit replaces all remaining Anys with Incomplete (or removes the annotation completely). This may be overzealous, as there might be legitimate Anys, but I opted for the "safer" side, as I don't have time to review them and they are all a bit suspect.

[srittau]

Regarding the primer output: The pip annotations need to be updated to include None. The code already handles the None case correctly.

[Avasam]

This PR works towards #9550
(This is not a review, just crosslinking)

[hamdanal]

I worked with optparse internals recently and I got somewhat familiar with it so I decided to leave you some suggestions that I thought could help your PR :)

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

pip (https://github.com/pypa/pip)
+ src/pip/_internal/cli/parser.py:70: error: Argument 1 of "format_description" is incompatible with supertype "HelpFormatter"; supertype defines the argument type as "str | None"  [override]
+ src/pip/_internal/cli/parser.py:70: note: This violates the Liskov substitution principle
+ src/pip/_internal/cli/parser.py:70: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides
+ src/pip/_internal/cli/parser.py:88: error: Argument 1 of "format_epilog" is incompatible with supertype "HelpFormatter"; supertype defines the argument type as "str | None"  [override]
+ src/pip/_internal/cli/parser.py:88: note: This violates the Liskov substitution principle
+ src/pip/_internal/cli/parser.py:88: note: See https://mypy.readthedocs.io/en/stable/common_issues.html#incompatible-overrides

[hamdanal]

LGTM, thank you.

Both mypy primer hits in pip are true positives. Their functions accept None but are annotated as accepting only str (see here); I guess they were just following the old optparse annotations.