Update actions/download-artifact action to v5

Author: renovate[bot]

.github/workflows/reusable-playwright-tests.yml

@@ -43,7 +43,7 @@ jobs:
 
             - name: Fetch webapp
               if: inputs.webapp-artifact
-              uses: actions/download-artifact@v4
+              uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5
               with:
                   name: ${{ inputs.webapp-artifact }}
                   path: webapp

.github/workflows/sonarqube.yml

@@ -38,7 +38,7 @@ jobs:
                   fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
 
             - name: 📥 Download artifact
-              uses: actions/download-artifact@v4
+              uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5
               with:
                   github-token: ${{ secrets.GITHUB_TOKEN }}
                   run-id: ${{ github.event.workflow_run.id }}