Merge pull request #47704 from Arhell/zh-fix

[zh] fix typo in deprecation-policy.md

Author: k8s-ci-robot

content/zh-cn/docs/reference/using-api/deprecation-policy.md

@@ -815,7 +815,7 @@ be automatically registered to the metrics endpoint and therefore visible.
 
 <!--
 On a subsequent release (when the metric's `deprecatedVersion` is equal to
-_current_kubernetes_version - 3_)), a deprecated metric will become a _hidden_ metric.
+_current_kubernetes_version - 3_), a deprecated metric will become a _hidden_ metric.
 **_Unlike_** their deprecated counterparts, hidden metrics will _no longer_ be
 automatically registered to the metrics endpoint (hence hidden). However, they
 can be explicitly enabled through a command line flag on the binary