make angle builder to use -j 150.

To mitigate slow builds on angle builders, let me make them use
-j 150.

Bug: 1120153
Change-Id: Ia18ceee9e681f2cc55ddb6ed54cb5c2548476afa
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2381216
Commit-Queue: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802536}

infra/config/lib/try.star

@@ -340,6 +340,7 @@ def chromium_angle_builder(*, name, **kwargs):
         name = name,
         builderless = False,
         goma_backend = builders.goma.backend.RBE_PROD,
+        goma_jobs = builders.goma.jobs.J150,
         mastername = "tryserver.chromium.angle",
         service_account = "chromium-try-gpu-builder@chops-service-accounts.iam.gserviceaccount.com",
         **kwargs