Do not remove namespace when intalled in default open-cluster-management-agent-addon namesapce (#111)

🤖 Generated with [Claude Code](https://claude.ai/code)

Signed-off-by: Qing Hao <qhao@redhat.com>
Co-authored-by: Claude <noreply@anthropic.com>

Author: haoqing0110

dynamic-scoring-framework/pkg/dynamic_scoring/manifests/templates/namespace.yaml

@@ -1,4 +1,8 @@
 apiVersion: v1
 kind: Namespace
 metadata:
-  name: {{ .AddonInstallNamespace }}
+{{- if eq .AddonInstallNamespace "open-cluster-management-agent-addon" }}
+  annotations:
+    addon.open-cluster-management.io/deletion-orphan: ""
+{{- end }}
+  name: {{ .AddonInstallNamespace }}