Add support for validation jobs to `sync.ts`, and refactor #11742

Job	Run time
check-codeql-versions	17s
analyze-other (python)	58s
analyze-other (actions)	52s
analyze-javascript (windows-2022)	6m 42s
analyze-javascript (macos-15, linked)	10m 59s
analyze-javascript (ubuntu-22.04)	4m 29s
analyze-javascript (windows-2025)	8m 33s
analyze-javascript (windows-2022, linked)	6m 28s
analyze-javascript (ubuntu-22.04, linked)	4m 29s
analyze-javascript (windows-2025, linked)	6m 50s
analyze-javascript (macos-15)	7m 6s
analyze-javascript (ubuntu-24.04)	4m 26s
analyze-javascript (macos-14, linked)	5m 24s
analyze-javascript (macos-14)	5m 27s
analyze-javascript (ubuntu-24.04, linked)	4m 35s
	1h 17m 35s

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