ci: Bump github artifacts

Signed-off-by: Julius Knorr <jus@bitgrid.net>

Author: juliusknorr

.github/workflows/cypress.yml

@@ -161,15 +161,15 @@ jobs:
           npm_package_name: ${{ env.APP_NAME }}
 
       - name: Upload test failure screenshots
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: Upload screenshots
           path: apps/${{ env.APP_NAME }}/cypress/screenshots/
           retention-days: 5
 
       - name: Upload nextcloud logs
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: Upload nextcloud log