Use 0.29.7 release for fink-utils in the CI

.github/workflows/run_test.yml

@@ -43,6 +43,7 @@ jobs:
 
     - name: Run test suites
       run: |
+        pip install fink-utils==0.29.7
         rm -f /tmp/forest_*.onnx
         ./run_tests.sh
         curl -s https://codecov.io/bash | bash