build(deps): bump cargo_metadata from 0.15.3 to 0.15.4

Bumps [cargo_metadata](https://github.com/oli-obk/cargo_metadata) from 0.15.3 to 0.15.4.
- [Release notes](https://github.com/oli-obk/cargo_metadata/releases)
- [Changelog](https://github.com/oli-obk/cargo_metadata/blob/main/CHANGELOG.md)
- [Commits](oli-obk/cargo_metadata@0.15.3...0.15.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]