Upgrade/Install: Move Hello Dolly plugin to directory structure. #46375

Job	Run time
Coding standards / PHP checks	29s
Coding standards / JavaScript checks	1m 5s
Slack Notifications / Prepare notifications	3s
Slack Notifications / Success notifications	4s
Slack Notifications / Failure notifications	-1s
Slack Notifications / Fixed notifications	-1s
Slack Notifications / Cancelled notifications	-1s
Failed workflow tasks	0s
	1m 38s

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