Update anchore/scan-action action to v6 (#170)

| 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/docker.yml

@@ -139,7 +139,7 @@ jobs:
         if: github.event_name != 'pull_request'
 
       - name: Scan image
-        uses: anchore/scan-action@869c549e657a088dc0441b08ce4fc0ecdac2bb65 # v5.3.0
+        uses: anchore/scan-action@abae793926ec39a78ab18002bc7fc45bbbd94342 # v6.0.0
         id: scan
         continue-on-error: true
         with: