Bump ScribeMD/docker-cache from 0.4.0 to 0.5.0 (#50)

Bumps [ScribeMD/docker-cache](https://github.com/scribemd/docker-cache) from 0.4.0 to 0.5.0.
- [Release notes](https://github.com/scribemd/docker-cache/releases)
- [Changelog](https://github.com/ScribeMD/docker-cache/blob/main/CHANGELOG.md)
- [Commits](ScribeMD/docker-cache@0.4.0...0.5.0)

---
updated-dependencies:
- dependency-name: ScribeMD/docker-cache
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/rust.yml

@@ -57,7 +57,7 @@ jobs:
       run: cargo update
     - uses: Swatinem/rust-cache@v2
     - name: Cache Docker images
-      uses: ScribeMD/docker-cache@0.4.0
+      uses: ScribeMD/docker-cache@0.5.0
       with:
         key: docker-${{ runner.os }}-${{ hashFiles('testfiles/**') }}
     - name: Run tests