Bump anchore/scan-action from 3 to 4 (#128)

Bumps [anchore/scan-action](https://github.com/anchore/scan-action) from 3 to 4.
- [Release notes](https://github.com/anchore/scan-action/releases)
- [Changelog](https://github.com/anchore/scan-action/blob/main/CHANGELOG.md)
- [Commits](anchore/scan-action@v3...v4)

---
updated-dependencies:
- dependency-name: anchore/scan-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/docker-release.yml

@@ -185,7 +185,7 @@ jobs:
           docker image ls -a
 
       - name: Scan "${{ needs.init.outputs.docker-image-name }}:${{ needs.init.outputs.github-ci-sha-short }}-${{ matrix.image-variant }}" Docker image
-        uses: anchore/scan-action@v3
+        uses: anchore/scan-action@v4
         id: scan
         with:
           image: ${{ needs.init.outputs.docker-image-name }}:${{ needs.init.outputs.github-ci-sha-short }}-${{ matrix.image-variant }}