docs: add proxy_opts attribute for openid-connect.md (#9922)

docs/en/latest/plugins/openid-connect.md

@@ -61,6 +61,7 @@ description: OpenID Connect allows the client to obtain user information from th
 | session                              | object  | False    |                       |              | When bearer_only is set to false, openid-connect will use Authorization Code flow to authenticate on the IDP, so you need to set the session-related configuration. |
 | session.secret                       | string  | True     | Automatic generation  | 16 or more characters | The key used for session encrypt and HMAC operation. |
 | unauth_action                        | string  | False    | "auth"                |              | Specify the response type on unauthenticated requests. "auth" redirects to identity provider, "deny" results in a 401 response, "pass" will allow the request without authentication. |
+| proxy_opts                           | object  | False    |                       | {<br/>          http_proxy: http://your-proxy.com:your-proxy-port,<br/>          https_proxy: http://your-proxy.com:your-proxy-port<br/>        } | domain and port of the proxy server                                                                                                                                                   |
 
 NOTE: `encrypt_fields = {"client_secret"}` is also defined in the schema, which means that the field will be stored encrypted in etcd. See [encrypted storage fields](../plugin-develop.md#encrypted-storage-fields).
 

docs/zh/latest/plugins/openid-connect.md

@@ -60,6 +60,7 @@ description: OpenID Connect（OIDC）是基于 OAuth 2.0 的身份认证协议
 | set_refresh_token_header             | boolean | 否     | false                 |               | 当设置为 `true` 并且刷新令牌可用时，则会将该属性设置在`X-Refresh-Token`请求头中。                      |
 | session                              | object  | 否     |                       |               | 当设置 bearer_only 为 false 时，openid-connect 插件将使用 Authorization Code 在 IDP 上进行认证，因此你必须设置 session 相关设置。 |
 | session.secret                       | string  | 是     | 自动生成               | 16 个以上字符  | 用于 session 加密和 HMAC 计算的密钥。 |
+| proxy_opts                           | object  | 否     |                       | {<br/>          http_proxy: http://your-proxy.com:your-proxy-port,<br/>          https_proxy: http://your-proxy.com:your-proxy-port<br/>        } | 用于设置代理服务器域名与端口                                                                                                      |
 
 注意：schema 中还定义了 `encrypt_fields = {"client_secret"}`，这意味着该字段将会被加密存储在 etcd 中。具体参考 [加密存储字段](../plugin-develop.md#加密存储字段)。