Merge branch 'WordPress:trunk' into trunk #5852

Job	Run time
Determine Matrix	-1s
matrix.label	-1s
Slack Notifications	-1s
Failed workflow tasks	0s
${{ ((matrix.multisite && 'Multisite') \|\| 'Single Site') }} ${{ ((matrix.memcached && 'Memcached') \|\| 'Default') }}	-7s
	-10s

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