feat: Add step to install Playwright browsers in CI workflow

.gitea/workflows/test.yml

@@ -37,6 +37,9 @@ jobs:
         run: |
           pip install -r requirements.txt
           pip install -r requirements-test.txt
+      - name: Install Playwright browsers
+        run: |
+          python -m playwright install --with-deps
       - name: Wait for database service
         env:
           DATABASE_DRIVER: postgresql