Use 4 workers on dump bot

Bug: b/297302759
Change-Id: Iac13480e5504e09deeedf1ec4938eb3e46d060ba
diff --git a/infra/config/global/generated/cr-buildbucket.cfg b/infra/config/global/generated/cr-buildbucket.cfg
index 42b64fa..be99e50 100644
--- a/infra/config/global/generated/cr-buildbucket.cfg
+++ b/infra/config/global/generated/cr-buildbucket.cfg
@@ -1633,7 +1633,9 @@
         '  "builder_group": "internal.client.r8",'
         '  "recipe": "rex",'
         '  "test_options": ['
-        '    "--bot"'
+        '    "--bot",'
+        '    "--workers",'
+        '    "4"'
         '  ],'
         '  "test_wrapper": "tools/run_on_app_dump.py"'
         '}'
@@ -1664,7 +1666,9 @@
         '  "builder_group": "internal.client.r8",'
         '  "recipe": "rex",'
         '  "test_options": ['
-        '    "--bot"'
+        '    "--bot",'
+        '    "--workers",'
+        '    "4"'
         '  ],'
         '  "test_wrapper": "tools/run_on_app_dump.py"'
         '}'
diff --git a/infra/config/global/generated/project.cfg b/infra/config/global/generated/project.cfg
index 3f70a4d..ee2ef9d 100644
--- a/infra/config/global/generated/project.cfg
+++ b/infra/config/global/generated/project.cfg
@@ -7,7 +7,7 @@
 name: "r8"
 access: "group:all"
 lucicfg {
-  version: "1.39.14"
+  version: "1.39.8"
   package_dir: ".."
   config_dir: "generated"
   entry_point: "main.star"
diff --git a/infra/config/global/main.star b/infra/config/global/main.star
index e57d037..4b827a3 100755
--- a/infra/config/global/main.star
+++ b/infra/config/global/main.star
@@ -379,7 +379,7 @@
   for release in ["", "_release"]:
       properties = {
           "builder_group" : "internal.client.r8",
-          "test_options" : ["--bot"],
+          "test_options" : ["--bot", "--workers", "4"],
           "test_wrapper" : "tools/run_on_app_dump.py"
       }
       name = "linux-run-on-app-dump" + release