Update anchore/sbom-action digest to a5bbe18 (#299)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/anchore-syft.yml

@@ -32,7 +32,7 @@ jobs:
     - name: Build the Docker image
       run: docker build . --file Dockerfile --tag localbuild/testimage:latest
     - name: Scan the image and upload dependency results
-      uses: anchore/sbom-action@55dc4ee22412511ee8c3142cbea40418e6cec693
+      uses: anchore/sbom-action@a5bbe18b4dff7eb7cfcb7e761dab91654437ba13
       with:
         image: "localbuild/testimage:latest"
         artifact-name: image.spdx.json