Increase firestore alert threshold for gold
Increase firestore alert threshold for gold

Looked like normal usage is ~30qps over a 24 hour period (~500k in ~10s during
startup when retrieving expectations and then up to 2 million when retrieving
CL Expectations)

Bug: skia:9494

Change-Id: I46045b93f6efd28551f2679b6e764cf58ca9d50f
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/247047
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot