Prepare for version 2024.10.11

- Update `__version__.py`
- Summarize changes from 2024.09.13...feaa7a2 in CHANGELOG
- Update docs

PiperOrigin-RevId: 684739987

Bump version to 2024.09.13

PiperOrigin-RevId: 674211296

Merge pull request #1615 from google/google_sync

Google sync

Merge pull request #1601 from google/google_sync

Google sync

Merge pull request #1598 from google/google_sync

Google sync

Merge pull request #1585 from google/google_sync

Google sync

Merge pull request #1581 from google/google_sync

Ignore non-aliased module nodes when collecting dependencies.

Merge pull request #1570 from google/google_sync

Prepare a PyPI release.

Merge pull request #1554 from google/google_sync

Prepare a PyPI release.

Merge pull request #1544 from google/google_sync

Do another PyPI release to get out an Unpack fix that typeshed needs.