[request] Add rejectUnauthorized to options (#18784)

types/request/index.d.ts

@@ -143,6 +143,7 @@ declare namespace request {
         localAddress?: string;
         proxy?: any;
         strictSSL?: boolean;
+        rejectUnauthorized?: boolean;
         time?: boolean;
         gzip?: boolean;
         preambleCRLF?: boolean;

types/request/request-tests.ts

@@ -115,7 +115,8 @@ var options: request.Options = {
 	pool: value,
 	timeout: num,
 	proxy: value,
-	strictSSL: bool
+	strictSSL: bool,
+	rejectUnauthorized: false
 };
 
 // Below line has compile error, use OptionsWithUri or OptionsWithUrl instead. See #7979.