overriding skc runs on

Author: wtripp180901

.github/workflows/pr-tests.yml

@@ -23,6 +23,7 @@ jobs:
       stackhpc_cloud_tests_version: ${{ github.ref }}
       repository: stackhpc/stackhpc-kayobe-config
       github_ref: stackhpc/2024.1
+      runs-on: arc-cloud-tests-runner
     secrets: inherit
 
   ubuntu-jammy-ovn-aio-test:
@@ -38,6 +39,7 @@ jobs:
       stackhpc_cloud_tests_version: ${{ github.ref }}
       repository: stackhpc/stackhpc-kayobe-config
       github_ref: stackhpc/2024.1
+      runs-on: arc-cloud-tests-runner
     secrets: inherit
 
   lint: