chore(deps): bump anchore/sbom-action in the dependencies group (#11082)

Bumps the dependencies group with 1 update: [anchore/sbom-action](https://github.com/anchore/sbom-action).


Updates `anchore/sbom-action` from 0.20.10 to 0.21.0
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](https://github.com/anchore/sbom-action/compare/fbfd9c6c189226748411491745178e0c2017392d...a930d0ac434e3182448fe678398ba5713717112a)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

.github/workflows/release.yaml

@@ -55,7 +55,7 @@ jobs:
       - name: Build frontend
         run: cd src/frontend && npm run compile && npm run build
       - name: Create SBOM for frontend
-        uses: anchore/sbom-action@fbfd9c6c189226748411491745178e0c2017392d # pin@v0
+        uses: anchore/sbom-action@a930d0ac434e3182448fe678398ba5713717112a # pin@v0
         with:
           artifact-name: frontend-build.spdx
           path: src/frontend