fix: change default runner to ubuntu-latest in CI workflow

Signed-off-by: Nikolai Emil Damm <[email protected]>

Author: devantler

.github/workflows/ci-gitops-test.yaml

@@ -12,7 +12,7 @@ on:
       RUNNER:
         required: false
         type: string
-        default: linux-arm64
+        default: ubuntu-latest
       HOSTS_FILE:
         required: false
         type: string
@@ -29,7 +29,7 @@ on:
 
 jobs:
   test:
-    runs-on: ${{ inputs.RUNNER }}
+    runs-on: ${{ inputs.RUNNER || 'linux-arm64' }}
     # Ignore Require Workflow runs
     if: github.repository != 'devantler-tech/reusable-workflows' && inputs.SKIP != true && github.event_name != 'merge_group'
     steps: