Merge pull request #926 from Automattic/dependabot/github_actions/dot… #929

Job	Run time
Prepare build matrix	2s
Build Docker image (ref: 261188f723a07811360fc23d824eefd0ed24258e, tag: 6.7)	1m 45s
Build Docker image (ref: 6.6.2, tag: 6.6)	1m 8s
Build Docker image (ref: 6.5.5, tag: 6.5)	1m 8s
Build Docker image (ref: 6.4.5, tag: 6.4)	1m 17s
Build Docker image (ref: 6.3.5, tag: 6.3)	1m 18s
Build Docker image (ref: 6.2.6, tag: 6.2)	1m 16s
Build Docker image (ref: 6.1.7, tag: 6.1)	1m 6s
Build Docker image (ref: 6.0.9, tag: 6.0)	1m 36s
Build Docker image (ref: HEAD, tag: trunk)	1m 58s
	12m 34s

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