Update actions/dependency-review-action action to v4.8.1

| datasource  | package                          | from   | to     |
| ----------- | -------------------------------- | ------ | ------ |
| github-tags | actions/dependency-review-action | v4.6.0 | v4.8.1 |


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

Author: renovate[bot]

.github/workflows/dependency-review.yml

@@ -22,6 +22,6 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Dependency Review
-        uses: actions/dependency-review-action@ce3cf9537a52e8119d91fd484ab5b8a807627bf8 # v4.6.0
+        uses: actions/dependency-review-action@40c09b7dc99638e5ddb0bfd91c1673effc064d8a # v4.8.1
         with:
           config-file: "nginx/k8s-common/dependency-review-config.yml@main"