Bump mukunku/tag-exists-action from 1.5.0 to 1.6.0

Bumps [mukunku/tag-exists-action](https://github.com/mukunku/tag-exists-action) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/mukunku/tag-exists-action/releases)
- [Commits](mukunku/tag-exists-action@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: mukunku/tag-exists-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/rust.yml

@@ -28,7 +28,7 @@ jobs:
           echo "version=$version" >> "$GITHUB_OUTPUT"
           echo "::notice ::Version from Cargo.toml $version"
       - name: Check if version is a Git tag
-        uses: mukunku/tag-exists-action@v1.5.0
+        uses: mukunku/tag-exists-action@v1.6.0
         id: check_git_tag
         with:
           tag: '${{ steps.extract_version.outputs.version }}'