build(deps): Bump anchore/sbom-action in the github-actions group

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


Updates `anchore/sbom-action` from 0.17.5 to 0.17.6
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](anchore/sbom-action@1ca97d9...251a468)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/at_server.yaml

@@ -118,7 +118,7 @@ jobs:
       # Only run on stable channel
       - if: ${{ matrix.dart-channel == 'stable' }}
         name: Install Syft
-        uses: anchore/sbom-action/download-syft@1ca97d9028b51809cf6d3c934c3e160716e1b605 # v0.17.5
+        uses: anchore/sbom-action/download-syft@251a468eed47e5082b105c3ba6ee500c0e65a764 # v0.17.6
       - if: ${{ matrix.dart-channel == 'stable' }}
         name: Generate SBOMs
         run: |