Bump up timeout when waiting for managed gRPC server
Summary: User is reporting running into timeouts here on process spinup: https://github.com/dagster-io/dagster/issues/3738 . This spinup process includes loading the user repo code so particularly in constrained environments I could imagine hitting that limit once in a while. Is 60 seconds too much though? Kind of going with my gut here. Generally the process should be raising a pretty clear error now if something goes wrong in the user code load, so I think we can probably be more conservative here now.
Test Plan: BK
Reviewers: alangenfeld, sashank, max
Reviewed By: alangenfeld
Differential Revision: https://dagster.phacility.com/D6935