[types] update ProxyAgent Options (timeout) (nodejs#1801)

Author: sosoba

test/types/proxy-agent.test-d.ts

@@ -16,13 +16,15 @@ expectAssignable<ProxyAgent>(
       ca: [''],
       key: '',
       cert: '',
-      servername: ''
+      servername: '',
+      timeout: 1
     },
     proxyTls: {
       ca: [''],
       key: '',
       cert: '',
-      servername: ''
+      servername: '',
+      timeout: 1
     }
   })
 )

types/proxy-agent.d.ts

@@ -1,5 +1,5 @@
-import { TlsOptions } from 'tls'
 import Agent from './agent'
+import buildConnector from './connector';
 import Dispatcher from './dispatcher'
 
 export default ProxyAgent
@@ -19,7 +19,7 @@ declare namespace ProxyAgent {
      */
     auth?: string;
     token?: string;
-    requestTls?: TlsOptions & { servername?: string };
-    proxyTls?: TlsOptions & { servername?: string };
+    requestTls?: buildConnector.BuildOptions;
+    proxyTls?: buildConnector.BuildOptions;
   }
 }