build(deps): bump anchore/sbom-action from 0.15.3 to 0.15.4 (#1187)

Bumps [anchore/sbom-action](https://github.com/anchore/sbom-action) from 0.15.3 to 0.15.4.
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](anchore/sbom-action@v0.15.3...v0.15.4)

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

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

.github/workflows/release.yml

@@ -135,7 +135,7 @@ jobs:
           file: build/Dockerfile
 
     - name: Generate SBOM
-      uses: anchore/[email protected].3
+      uses: anchore/[email protected].4
       with:
         image: quay.io/sustainable_computing_io/kepler:${{ github.event.inputs.release }}
         artifact-name: sbom-kepler-${{ github.event.inputs.release }}.json