Bump calibreapp/image-actions in the github-actions group (#512)

Bumps the github-actions group with 1 update: [calibreapp/image-actions](https://github.com/calibreapp/image-actions).


Updates `calibreapp/image-actions` from 1.3.0 to 1.4.0
- [Release notes](https://github.com/calibreapp/image-actions/releases)
- [Commits](calibreapp/image-actions@51921e2...f72c7c4)

---
updated-dependencies:
- dependency-name: calibreapp/image-actions
  dependency-version: 1.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/calibreapp-image-actions.yml

@@ -27,6 +27,6 @@ jobs:
           persist-credentials: false
 
       - name: Compress Images
-        uses: calibreapp/image-actions@51921e25c9b0b62ed202c0ad0a2121f0f3ad186d # 1.3.0
+        uses: calibreapp/image-actions@f72c7c4a237181dd3b26e5935fd33b22ae4a7e26 # 1.4.0
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}