workflow: enable CNCF runners

This should allows to build and run amd64 qemu tests from github
actions.

Signed-off-by: Mathieu Tortuyaux <mtortuyaux@microsoft.com>

Author: tormath1

.github/workflows/ci.yaml

@@ -34,11 +34,7 @@ permissions:
 jobs:
   packages:
     name: "Build Flatcar packages"
-    runs-on:
-      - self-hosted
-      - ubuntu
-      - build
-      - amd64
+    runs-on: oracle-vm-32cpu-128gb-x86-64
     strategy:
       fail-fast: false
       matrix:

.github/workflows/run-kola-tests.yaml

@@ -17,15 +17,11 @@ on:
 jobs:
   tests:
     name: "Run Kola tests"
-    runs-on:
-      - self-hosted
-      - ubuntu
-      - kola
-      - ${{ matrix.arch }}
+    runs-on: oracle-16cpu-64gb-x86-64
     strategy:
       fail-fast: false
       matrix:
-        arch: ["amd64", "arm64"]
+        arch: ["amd64"]
 
     steps:
       - name: Prepare machine
@@ -186,7 +182,7 @@ jobs:
 
           source ci-automation/test.sh
 
-          PARALLEL_ARCH=10
+          PARALLEL_ARCH=5
 
           cat > sdk_container/.env <<EOF
           # export the QEMU_IMAGE_NAME to avoid to download it.
@@ -239,10 +235,7 @@ jobs:
     name: "Merge TAP reports and post results"
     needs: tests
     if: always() && !cancelled()
-    runs-on:
-      - self-hosted
-      - ubuntu
-      - kola
+    runs-on: oracle-16cpu-64gb-x86-64
     permissions:
       pull-requests: write