Action size: Add a PR check that comments on significant repo size changes #12358

Job	Run time
analyze-other (actions)	54s
check-codeql-versions	10s
analyze-other (python)	52s
analyze-javascript (ubuntu-24.04)	4m 26s
analyze-javascript (windows-2022, linked)	5m 19s
analyze-javascript (ubuntu-22.04)	3m 49s
analyze-javascript (windows-2025)	5m 34s
analyze-javascript (macos-15-xlarge)	3m 22s
analyze-javascript (ubuntu-24.04, linked)	4m 18s
analyze-javascript (macos-15-xlarge, linked)	2m 33s
analyze-javascript (windows-2022)	5m 54s
analyze-javascript (macos-14-xlarge)	2m 26s
analyze-javascript (ubuntu-22.04, linked)	4m 22s
analyze-javascript (windows-2025, linked)	6m 18s
analyze-javascript (macos-14-xlarge, linked)	2m 36s
	52m 53s

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