Add sub-title for downloading and/or installing python packages #1182

Job	Run time
web / web	1m 26s
jupyterlab / native (macos-latest)	3m 35s
agent / agent	2m 2s
jupyterlab / native (windows-latest)	7m 19s
build / build	3m 8s
positron / docker	1m 28s
jupyterlab / native (ubuntu-latest)	3m 6s
positron / native (macos-latest)	35s
positron / native (windows-latest)	1m 39s
positron / native (ubuntu-latest)	25s
bats / docker (ubuntu-latest)	1m 39s
bats / native (macos-latest)	18s
bats / native (windows-latest)	57s
bats / native (ubuntu-latest)	18s
cypress / native (macos-latest)	1m 18s
cypress / native (windows-latest)	3m 37s
cypress / native (ubuntu-latest)	53s
	33m 43s

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