chore(deps): Bump anchore/scan-action from 4 to 6

Bumps [anchore/scan-action](https://github.com/anchore/scan-action) from 4 to 6.
- [Release notes](https://github.com/anchore/scan-action/releases)
- [Changelog](https://github.com/anchore/scan-action/blob/main/CHANGELOG.md)
- [Commits](anchore/scan-action@v4...v6)

---
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/pr-checks.yaml

@@ -113,7 +113,7 @@ jobs:
         run: make docker-build
 
       - name: Scan image
-        uses: anchore/scan-action@v4
+        uses: anchore/scan-action@v6
         with:
           image: '5gsec/nimbus:latest'
           severity-cutoff: critical
@@ -137,7 +137,7 @@ jobs:
         run: make docker-build
 
       - name: Scan image
-        uses: anchore/scan-action@v4
+        uses: anchore/scan-action@v6
         with:
           image: '5gsec/${{ matrix.adapters }}:latest'
           severity-cutoff: critical

.github/workflows/release-image.yaml

@@ -50,7 +50,7 @@ jobs:
         working-directory: ${{ inputs.WORKING_DIRECTORY }}
 
       - name: Scan image
-        uses: anchore/scan-action@v4
+        uses: anchore/scan-action@v6
         with:
           image: '5gsec/${{ inputs.NAME }}:${{ steps.tag.outputs.tag }}'
           severity-cutoff: critical