Bump build execution timeout to 60 minutes (from 30m)

This is a problem on macOS. When XCode is not at the right version, the
bot can spend most of the time on this, causing the build to timeout. It's not
super frequent, but it's problematic.

You can see the bimodal runtime at
https://chromium-swarm.appspot.com/tasklist?c=name&c=created_ts&c=duration&c=bot&c=os-tag&c=state&d=desc&et=1603900800000&f=cpu-tag%3Ax86-64&f=pool-tag%3Aluci.flex.ci&f=luci_project-tag%3Agn&n=false&s=created_ts&st=1601568000000

Change-Id: I7e511f587ed688c68978e91ef258fbd63dff5387
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/10540
Reviewed-by: Petr Hosek <phosek@google.com>
1 file changed
tree: 0a59789601f2f56f6728307358e5a47bb37a998a
  1. README.md
  2. codereview.settings
  3. commit-queue.cfg
  4. cr-buildbucket.cfg
  5. luci-logdog.cfg
  6. luci-milo.cfg
  7. luci-scheduler.cfg
  8. project.cfg
README.md

This branch contains project-wide configurations for infra services.