Allow for multiple windows commits to run concurrently

Bug: 124643718
Change-Id: I96e468cefe59291976740f04c370bfb6ae9a24c4
diff --git a/infra/config/global/cr-buildbucket.cfg b/infra/config/global/cr-buildbucket.cfg
index 58afca3..e1f53dc 100644
--- a/infra/config/global/cr-buildbucket.cfg
+++ b/infra/config/global/cr-buildbucket.cfg
@@ -85,6 +85,7 @@
 
     builders {
       name: "archive"
+      priority: 25
       mixins: "linux"
       execution_timeout_secs: 1800  # 1/2h
       dimensions: "archive_bot:true"
@@ -94,6 +95,7 @@
     }
     builders {
       name: "archive_release"
+      priority: 25
       mixins: "linux"
       execution_timeout_secs: 1800  # 1/2h
       dimensions: "archive_bot:true"
diff --git a/infra/config/global/luci-scheduler.cfg b/infra/config/global/luci-scheduler.cfg
index 2b67476..4de5097 100644
--- a/infra/config/global/luci-scheduler.cfg
+++ b/infra/config/global/luci-scheduler.cfg
@@ -74,6 +74,9 @@
 job {
   id: "archive"
   acl_sets: "default"
+  triggering_policy: {
+    max_concurrent_invocations: 3
+  }
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.r8.ci"
@@ -403,6 +406,9 @@
 
 job {
   id: "windows"
+  triggering_policy: {
+    max_concurrent_invocations: 3
+  }
   acl_sets: "default"
   buildbucket {
     server: "cr-buildbucket.appspot.com"
@@ -414,6 +420,9 @@
 job {
   id: "windows_release"
   acl_sets: "default"
+  triggering_policy: {
+    max_concurrent_invocations: 3
+  }
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.r8.ci"