.github: request fewer CPUs for workers

Author: a-nogikh

.github/arc_config/values.yaml

@@ -197,7 +197,7 @@ template:
       command: ["/home/runner/run.sh"]
       resources:
         requests:
-          cpu: 31
+          cpu: 28
 
 ## Optional controller service account that needs to have required Role and RoleBinding
 ## to operate this gha-runner-scale-set installation.
@@ -207,4 +207,4 @@ template:
 ## Note: if your controller is installed to only watch a single namespace, you have to pass these values explicitly.
 # controllerServiceAccount:
 #   namespace: arc-system
-#   name: test-arc-gha-runner-scale-set-controller
+#   name: test-arc-gha-runner-scale-set-controller

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
           .github/workflows/run.sh make presubmit_aux
 
   build:
-    runs-on: ubuntu-24.04-8core
+    runs-on: arc-cunner-set
     container: gcr.io/syzkaller/env:latest
     env:
       GOPATH: /__w/syzkaller/syzkaller/gopath
@@ -80,7 +80,7 @@ jobs:
           verbose: true
 
   dashboard:
-    runs-on: ubuntu-24.04-8core
+    runs-on: arc-cunner-set
     container: gcr.io/syzkaller/env:latest
     env:
       GOPATH: /__w/syzkaller/syzkaller/gopath
@@ -136,7 +136,7 @@ jobs:
           .github/workflows/run.sh make ${{ matrix.target }}
 
   race:
-    runs-on: ubuntu-24.04-8core
+    runs-on: arc-cunner-set
     timeout-minutes: 15 # Q1 2024 experiments may affect timeout, let's relax it
     container: gcr.io/syzkaller/env:latest
     env:
@@ -162,7 +162,7 @@ jobs:
           .github/workflows/run.sh make presubmit_race
 
   race_dashboard:
-    runs-on: ubuntu-24.04-8core
+    runs-on: arc-runner-set
     container: gcr.io/syzkaller/env:latest
     env:
       GOPATH: /__w/syzkaller/syzkaller/gopath