Add Panel dashboard wrapper for Voila #3219

Job	Run time
format-check	38s
run-tests (ubuntu-20.04, 3.9, pinned, 1)	2m 45s
run-tests (ubuntu-20.04, 3.9, pinned, 2)	5m 21s
run-tests (ubuntu-20.04, 3.9, pinned, 3)	4m 59s
run-tests (ubuntu-20.04, 3.9, pinned, 4)	4m 14s
run-tests (ubuntu-20.04, 3.9, pinned, 5)	3m 2s
run-tests (ubuntu-20.04, 3.9, pinned, 6)	6m 7s
run-tests (ubuntu-20.04, 3.9, fresh, 1)	55s
run-tests (ubuntu-20.04, 3.9, fresh, 2)	55s
run-tests (ubuntu-20.04, 3.9, fresh, 3)	55s
run-tests (ubuntu-20.04, 3.9, fresh, 4)	56s
run-tests (ubuntu-20.04, 3.9, fresh, 5)	53s
run-tests (ubuntu-20.04, 3.9, fresh, 6)	52s
upload-to-pypi	0s
Download, combine and save test_durations to the actions cache	6s
	32m 38s

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