Bump feedparser from 6.0.10 to 6.0.11 in /docker/py3-tools (#22953)

Bumps [feedparser](https://github.com/kurtmckee/feedparser) from 6.0.10 to 6.0.11.
- [Changelog](https://github.com/kurtmckee/feedparser/blob/develop/CHANGELOG.rst)
- [Commits](kurtmckee/feedparser@6.0.10...6.0.11)

---
updated-dependencies:
- dependency-name: feedparser
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>