Update anchore/scan-action action to v6 (#2913)

| datasource  | package             | from   | to     |
| ----------- | ------------------- | ------ | ------ |
| github-tags | anchore/scan-action | v5.3.0 | v6.0.0 |

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

Author: renovate[bot]

.github/workflows/build.yml

@@ -163,7 +163,7 @@ jobs:
 
       - name: Scan SBOM
         id: scan
-        uses: anchore/scan-action@869c549e657a088dc0441b08ce4fc0ecdac2bb65 # v5.3.0
+        uses: anchore/scan-action@abae793926ec39a78ab18002bc7fc45bbbd94342 # v6.0.0
         with:
           sbom: "sbom-${{ inputs.image }}.json"
           only-fixed: true