kubeflow-pipelines-visualization-server: add debugging comment

kubeflow-pipelines-visualization-server.yaml

@@ -38,6 +38,13 @@ pipeline:
       patches: 0001-Bump-dependencies.patch
 
   - runs: |
+      # When the requirements.in file needs updating, uncommenting these lines
+      # will install pip-compile, run it once to fetch packages, then fail the
+      # build to drop you into a debug shell:
+      # apk add py${{vars.py-version}}-pip-tools-bin
+      # pip-compile --output-file tmp.txt backend/src/apiserver/visualization/requirements.in
+      # false
+
       mkdir -p ${{targets.destdir}}/usr/share/app
       cp -r backend/src/apiserver/visualization/* ${{targets.destdir}}/usr/share/app/
       cd ${{targets.destdir}}/usr/share/app/