buildscripts: Increase macos.cfg timeout to 1h (1.77.x backport)#12463

ejona86 wants to merge 1 commit intogrpc:v1.77.xgrpc/grpc-java:v1.77.xfrom

ejona86:backport-increase-vm-timeout-kokoro-mac-1.77ejona86/grpc-java:backport-increase-vm-timeout-kokoro-mac-1.77Copy head branch name to clipboard