chore: wait for chart before helm update (#1062)

Author: rokroskar

.github/workflows/test_deploy.yml

@@ -294,6 +294,8 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.RENKU_CI_TOKEN }}
         DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
         DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+    - name: Wait for chart to be available
+      run: sleep 120
     - name: Update component version
       uses: SwissDataScienceCenter/renku/actions/update-component-version@master
       env: