chore(deps): bump anchore/sbom-action from 0.15.5 to 0.15.6 (#278)

Bumps [anchore/sbom-action](https://github.com/anchore/sbom-action) from 0.15.5 to 0.15.6.
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](anchore/sbom-action@24b0d52...c6aed38)

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

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

.github/workflows/release.yaml

@@ -96,7 +96,7 @@ jobs:
           QUILL_NOTARY_KEY: ${{ secrets.APPLE_NOTARY_KEY }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: anchore/sbom-action@24b0d5238516480139aa8bc6f92eeb7b54a9eb0a #v0.15.5
+      - uses: anchore/sbom-action@c6aed38a4323b393d05372c58a74c39ae8386d02 #v0.15.6
         with:
           artifact-name: sbom.spdx.json