Bump anchore/scan-action from 3 to 4

Bumps [anchore/scan-action](https://github.com/anchore/scan-action) from 3 to 4.
- [Release notes](https://github.com/anchore/scan-action/releases)
- [Changelog](https://github.com/anchore/scan-action/blob/main/CHANGELOG.md)
- [Commits](anchore/scan-action@v3...v4)

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

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

.github/workflows/anchore-analysis.yml

@@ -24,7 +24,7 @@ jobs:
     - name: Build the Docker image
       run: docker build . --file Dockerfile --tag localbuild/testimage:latest
     - name: Run the Anchore scan action itself with GitHub Advanced Security code scanning integration enabled
-      uses: anchore/scan-action@v3
+      uses: anchore/scan-action@v4
       id: scan
       with:
         image: "localbuild/testimage:latest"
@@ -34,7 +34,7 @@ jobs:
       with:
         sarif_file: ${{ steps.scan.outputs.sarif }}
     - name: Fail build if scan has vulns
-      uses: anchore/scan-action@v3
+      uses: anchore/scan-action@v4
       with:
         image: "localbuild/testimage:latest"
         severity-cutoff: critical