Bump anchore/sbom-action from 0.20.1 to 0.20.4 (#1066)

Bumps [anchore/sbom-action](https://github.com/anchore/sbom-action) from 0.20.1 to 0.20.4.
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](anchore/sbom-action@9246b90...7b36ad6)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-version: 0.20.4
  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>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -73,7 +73,7 @@ jobs:
         token: ${{ secrets.CODECOV_TOKEN }}
 
     - name: Generate SBOM
-      uses: anchore/sbom-action@9246b90769f852b3a8921f330c59e0b3f439d6e9 # v0.20.1
+      uses: anchore/sbom-action@7b36ad622f042cab6f59a75c2ac24ccb256e9b45 # v0.20.4
       with:
         artifact-name: build-${{ matrix.os-name }}.spdx.json
         output-file: ./artifacts/build.spdx.json