feat: add stderr heartbeat with deadlock diagnosis and prevention #4630

Job	Run time
Get Changes	5s
Check: source-shopify	6h 5m 0s
Check: source-pokeapi	2m 0s
Check: destination-motherduck	3m 18s
Skipped Check: source-google-drive	3s
Check: source-intercom	5m 7s
Check: source-hardcoded-records	2m 48s
	6h 18m 21s

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