Use ARC V2 self-hosted runners for CPU jobs (#806)

This PR is updating the runner labels to use ARC V2 self-hosted runners for CPU jobs only. This is needed to resolve the auto-scalling issues.

Authors:
  - Jordan Jacobelli (https://github.com/jjacobelli)

Approvers:
  - David Gardner (https://github.com/dagardner-nv)

URL: #806

.github/workflows/ci_pipe.yml

@@ -60,7 +60,7 @@ jobs:
   check:
     if: ${{ inputs.run_check }}
     name: Check
-    runs-on: [self-hosted, linux, amd64, cpu4]
+    runs-on: linux-amd64-cpu4
     timeout-minutes: 60
     container:
       credentials:
@@ -91,7 +91,7 @@ jobs:
 
   build:
     name: Build
-    runs-on: [self-hosted, linux, amd64, cpu16]
+    runs-on: linux-amd64-cpu16
     timeout-minutes: 60
     container:
       credentials:
@@ -157,7 +157,7 @@ jobs:
   documentation:
     name: Documentation
     needs: [build]
-    runs-on: [self-hosted, linux, amd64, cpu4]
+    runs-on: linux-amd64-cpu4
     timeout-minutes: 60
     container:
       credentials: