chore(arc-tf): drop ineffective listener-resource workarounds

Revert PR #26's additions: ServerSideApply=true and the Role/RoleBinding
ignoreDifferences entries. Neither addressed the OutOfSync state — that
turns out to be ArgoCD's label-based tracking claiming controller-created
listener resources that the chart never renders, which is structurally
not solvable via field-level ignore patterns. Comment notes the
condition is cosmetic; Health stays correct.

Also drop the AutoscalingListener ignoreDifferences entry since the
chart doesn't render that kind, so there's no desired state to drift
from. Keep only the AutoscalingRunnerSet entry, which IS chart-rendered
and does see controller-driven annotation churn.

Author: xnoto

workloads/arc/arc-tf-application.yaml

@@ -35,34 +35,22 @@ spec:
               - name: runner
                 image: ghcr.io/makeitworkcloud/tfroot-runner:latest
                 command: ["/home/runner/run.sh"]
-  # The gha-runner-scale-set controller creates the listener AutoscalingListener
-  # and a paired Role/RoleBinding at runtime (named `<release>-<hash>-listener`),
-  # then continually rotates hash annotations on them. None of these are in the
-  # chart's rendered output. Ignore field-level drift, and rely on ServerSideApply
-  # so ArgoCD doesn't try to manage fields the controller owns.
+  # The gha-runner-scale-set controller mutates AutoscalingRunnerSet at runtime
+  # (hash annotations propagate down through spec.template); ignore those drifts
+  # so selfHeal doesn't thrash on every reconcile. The dynamically-created
+  # listener resources (AutoscalingListener + paired Role/RoleBinding) are
+  # cosmetically reported as OutOfSync because the chart doesn't render them
+  # and ArgoCD's label-based tracking still claims them — Health stays correct
+  # and Synced won't follow without a cluster-wide tracking-method change.
   ignoreDifferences:
-    - group: actions.github.com
-      kind: AutoscalingListener
-      jsonPointers:
-        - /metadata/annotations
-        - /spec
     - group: actions.github.com
       kind: AutoscalingRunnerSet
       jsonPointers:
         - /metadata/annotations
         - /spec/template
-    - group: rbac.authorization.k8s.io
-      kind: Role
-      jsonPointers:
-        - /metadata/annotations
-    - group: rbac.authorization.k8s.io
-      kind: RoleBinding
-      jsonPointers:
-        - /metadata/annotations
   syncPolicy:
     automated:
       prune: true
       selfHeal: true
     syncOptions:
-      - ServerSideApply=true
       - RespectIgnoreDifferences=true