Bump retain_mut from 0.1.3 to 0.1.4 (#10021)

Bumps [retain_mut](https://github.com/upsuper/retain_mut) from 0.1.3 to 0.1.4.
- [Release notes](https://github.com/upsuper/retain_mut/releases)
- [Commits](https://github.com/upsuper/retain_mut/commits)

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

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