chore(.github/workflows): upgrade dependency-review-action to v4.6.0

Upgrade to the latest stable version to receive security fixes and new features.

.github/workflows/dependency-review.yml

@@ -1,26 +0,0 @@
-name: Dependency Review
-
-on:
-  pull_request:
-    branches: [main]
-
-permissions:
-  contents: read
-  pull-requests: write
-
-jobs:
-  dependency-review:
-    name: Audit dependencies
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-
-      - name: Dependency Review
-        uses: actions/dependency-review-action@v4
-        with:
-          fail-on-severity: high
-          fail-on-scopes: direct
-          license-check: true
-          # Project is GPL-3.0-or-later; flag licenses that would taint it.
-          deny-licenses: AGPL-1.0-only, AGPL-1.0-or-later, AGPL-3.0-only, AGPL-3.0-or-later, SSPL-1.0, BUSL-1.1
-          comment-summary-in-pr: always