[2.x] Update to PHP 8.4 #138

Job	Run time
Create Release / Required Labels / Required Labels	5s
Create Release / Set Milestone / Supported Versions Matrix	7s
Create Release / Craft Release	0s
Create Release / Diff / Helm Diff	0s
Create Release / Diff / Terraform Diff	0s
Create Release / Diff / Composer Diff / Comment composer.lock diff	17s
Create Release / Set Milestone / Supported Threading Matrix / Supported Threading Matrix	4s
Create Release / Set Milestone / Figure out what the version should be	34s
Create Release / Set Milestone / Set Milestone / Set Milestone	21s
	1m 28s

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