Turn into PHPStan extension #16

Job	Run time
Create Release / Set Milestone	0s
Create Release / Craft Release	0s
Create Release / Diff / Helm Diff	0s
Create Release / Required Labels / Required Labels	2s
Create Release / Diff / Terraform Diff	0s
Create Release / Diff / Composer Diff / Comment composer.lock diff	8s
	10s

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