[Autoroll] Use main branch from skia-autoroll-internal-config
[Autoroll] Use main branch from skia-autoroll-internal-config

Bug: skia:11980
Change-Id: I6cf3764b4251f83636516af34cdccc756f9ca50d
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/406776
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