fix the PR number

Author: pierluigilenoci

helm/oauth2-proxy/Chart.yaml

@@ -38,4 +38,4 @@ annotations:
       description: Upgrade to the latest version of Redis
       links:
         - name: Github PR
-          url: https://github.com/oauth2-proxy/manifests/pull/185
+          url: https://github.com/oauth2-proxy/manifests/pull/186