Bump mukunku/tag-exists-action from 1.3.0 to 1.4.0 (#5570)

Bumps [mukunku/tag-exists-action](https://github.com/mukunku/tag-exists-action) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/mukunku/tag-exists-action/releases)
- [Commits](https://github.com/mukunku/tag-exists-action/compare/v1.3.0...v1.4.0)

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

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

.github/workflows/build-firmware.yaml

@@ -29,7 +29,7 @@ jobs:
           echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
         fi
 
-    - uses: mukunku/tag-exists-action@v1.3.0
+    - uses: mukunku/tag-exists-action@v1.4.0
       id: checkTag
       with:
         tag: ${{ env.date }}