Update actions/dependency-review-action action to v4.6.0

Author: renovate[bot]

.github/workflows/flutter.yml

@@ -24,7 +24,7 @@ jobs:
         with:
           fetch-depth: 0 # for SonarCloud
 
-      - uses: actions/dependency-review-action@3b139cfc5fae8b618d3eae3675e383bb1769c019 # v4.5.0
+      - uses: actions/dependency-review-action@ce3cf9537a52e8119d91fd484ab5b8a807627bf8 # v4.6.0
         if: github.base_ref
 
       - name: Setup Flutter