CLN: assorted

[jbrockmendel]

• closes #xxxx (Replace xxxx with the GitHub issue number)
• Tests added and passed if fixing a bug or adding a new feature
• All code checks passed.
• Added type annotations to new arguments/methods/functions.
• Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

[mroeschke]

2023-08-21T21:16:17.4537902Z /home/runner/work/pandas/pandas/pandas/core/indexes/base.py:docstring of pandas.core.indexes.base.Index.get_indexer:44: CRITICAL: Unexpected section title or transition.
2023-08-21T21:16:17.4538391Z 
2023-08-21T21:16:17.4538801Z -----
2023-08-21T21:16:17.4539546Z /home/runner/work/pandas/pandas/pandas/core/indexes/base.py:docstring of pandas.core.indexes.base.Index.get_indexer:44: CRITICAL: Unexpected section title or transition.
2023-08-21T21:16:17.4539976Z 
2023-08-21T21:16:17.4540160Z -----
2023-08-21T21:16:17.4540647Z /home/runner/work/pandas/pandas/pandas/core/indexes/base.py:docstring of pandas.core.indexes.base.Index.get_indexer:44: CRITICAL: Unexpected section title or transition.
2023-08-21T21:16:17.4541159Z looking for now-outdated files... none found
2023-08-21T21:16:17.4541409Z 
2023-08-21T21:16:17.4541582Z -----

[mroeschke]

Thanks @jbrockmendel