[jenkins] Coverage bot: Adjust the timeouts
The test stage seems to be taking longer, bumping up the timeout for it
to 5 hours. Also, the build stage doesn't really need 5 hours, bumping
it down to 3 hours.
Diffusion LLVM Github Zorg 0274c2cc29a8
azharudd on Oct 6 2022, 2:10 PM.Authored by