Bump types-docker from 7.1.0.20240806 to 7.1.0.20240821 (#303)

Bumps [types-docker](https://github.com/python/typeshed) from 7.1.0.20240806 to 7.1.0.20240821.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-docker
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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