chore: Adding stale workflow #1783

Job	Run time
build-test-server	7m 52s
contract-tests-curl	4m 17s
contract-tests	4m 20s
build-test-server-mac-curl	5m 59s
build-test-server-curl	7m 51s
build-test-server-windows-curl	19m 1s
build-test-server-mac	5m 19s
build-test-server-windows	17m 28s
	1h 12m 7s

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