[infra] Increase maximum attempts for build, test, perf, calmbench tasks

Pubsub errors are causing lots of flaky bot failures

Bug: skia:
Change-Id: I2fc6d57d296899faea36d37dd93fa1e381cea199
Reviewed-on: https://skia-review.googlesource.com/c/164048
Commit-Queue: Eric Boren <borenet@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Eric Boren <borenet@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2 files changed