set papermill log level to help troubleshoot

Author: vkt1414

.github/workflows/test_colab.yml

@@ -89,7 +89,7 @@ jobs:
           for nb in part1_prerequisites part2_searching_basics part3_exploring_cohorts; do
             docker run -d --name colab -v "$(pwd):/content" -e GOOGLE_APPLICATION_CREDENTIALS="${{ env.GOOGLE_APPLICATION_CREDENTIALS }}" imagingdatacommons/idc-testing-colab:latest
             docker exec -t colab /bin/bash -c "pip install papermill==2.4.0"
-            docker exec -t colab /bin/bash -c "set -o xtrace && set -o errexit && set -o pipefail && set -o nounset && set +o errexit && cd content/ && papermill /content/notebooks/getting_started/${nb}.ipynb /content/test/outputs/${nb}_papermill_output.ipynb && set -o errexit && ls -A"
+            docker exec -t colab /bin/bash -c "set -o xtrace && set -o errexit && set -o pipefail && set -o nounset && set +o errexit && cd content/ && papermill --log-level='DEBUG' /content/notebooks/getting_started/${nb}.ipynb /content/test/outputs/${nb}_papermill_output.ipynb && set -o errexit && ls -A"
             #docker exec -t colab /bin/bash -c "jupyter nbconvert --to html --ExtractOutputPreprocessor.enabled=False /content/test/outputs/output_${nb}.ipynb"
             docker stop colab
             docker rm colab