chore: add CI check for openapi spec generation #3795

Job	Run time
Get Changes	4s
Check: source-hardcoded-records	2m 51s
Check: source-shopify	1h 1m 47s
Check: source-pokeapi	1m 53s
Check: destination-motherduck	3m 2s
Check: source-intercom	2m 58s
Skipped Check: source-google-drive	3s
	1h 12m 38s

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