Add a try builder to run boringssl presubmits

This adds a CQ builder that runs the "presubmit" recipe, which will run
the checks in infra/config/PRESUBMIT.py on CQ.

This will help prevent lucicfg validation errors from landing.

Change-Id: I440156ea61b140bda143fb210635d6d064f6d400
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/80647
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Auto-Submit: Lily Chen <chlily@google.com>

infra/config/generated/commit-queue.cfg

diff --git a/infra/config/generated/commit-queue.cfg b/infra/config/generated/commit-queue.cfg
index a3eae35..df7e24f 100644
--- a/infra/config/generated/commit-queue.cfg
+++ b/infra/config/generated/commit-queue.cfg
@@ -96,6 +96,9 @@
         name: "boringssl/try/android_riscv64_compile_only"
       }
       builders {
+        name: "boringssl/try/boringssl_presubmit"
+      }
+      builders {
         name: "boringssl/try/docs"
       }
       builders {

infra/config/generated/cr-buildbucket.cfg

diff --git a/infra/config/generated/cr-buildbucket.cfg b/infra/config/generated/cr-buildbucket.cfg
index 58b2ae1..a988713 100644
--- a/infra/config/generated/cr-buildbucket.cfg
+++ b/infra/config/generated/cr-buildbucket.cfg
@@ -2676,6 +2676,29 @@
       }
     }
     builders {
+      name: "boringssl_presubmit"
+      swarming_host: "chromium-swarm.appspot.com"
+      dimensions: "cpu:x86-64"
+      dimensions: "os:Ubuntu-22.04"
+      dimensions: "pool:luci.flex.try"
+      exe {
+        cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
+        cipd_version: "refs/heads/main"
+        cmd: "luciexe"
+      }
+      properties:
+        '{'
+        '  "recipe": "presubmit",'
+        '  "repo_name": "boringssl"'
+        '}'
+      execution_timeout_secs: 1800
+      service_account: "boringssl-try-builder@chops-service-accounts.iam.gserviceaccount.com"
+      experiments {
+        key: "luci.recipes.use_python3"
+        value: 100
+      }
+    }
+    builders {
       name: "docs"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "cpu:x86-64"

infra/config/main.star

diff --git a/infra/config/main.star b/infra/config/main.star
index 6cbe93c..2456ab2 100755
--- a/infra/config/main.star
+++ b/infra/config/main.star
@@ -347,6 +347,15 @@
 # properties rather than parsing names. Then we can add new configurations
 # without having to touch multiple repositories.
 
+cq_builder(
+    "boringssl_presubmit",
+    LINUX_HOST,
+    recipe = "presubmit",
+    properties = {
+        "repo_name": "boringssl",
+    },
+)
+
 both_builders(
     "android_aarch64",
     WALLEYE_HOST,