fix: resolve argo-rollouts CRD OutOfSync with ignoreDifferences

Add ignoreDifferences for CRDs (metadata labels/annotations drift
caused by ServerSideApply field managers) and RespectIgnoreDifferences
sync option.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

argocd-apps/argo-rollouts.yaml

@@ -27,6 +27,13 @@ spec:
   destination:
     server: https://kubernetes.default.svc
     namespace: argo-rollouts
+  ignoreDifferences:
+    - group: apiextensions.k8s.io
+      kind: CustomResourceDefinition
+      jsonPointers:
+        - /metadata/labels
+        - /metadata/annotations
+        - /spec/names/shortNames
   syncPolicy:
     automated:
       prune: true
@@ -34,3 +41,4 @@ spec:
     syncOptions:
       - CreateNamespace=true
       - ServerSideApply=true
+      - RespectIgnoreDifferences=true