Use optional chaining where possible (#13773)

src/language-js/parse/babel.js

@@ -66,7 +66,7 @@ const appendPlugins = (plugins, options = parseOptions) => ({
 // https://github.com/babel/babel/pull/7934/files#diff-a739835084910b0ee3ea649df5a4d223R67
 const FLOW_PRAGMA_REGEX = /@(?:no)?flow\b/;
 function isFlowFile(text, options) {
-  if (options.filepath && options.filepath.endsWith(".js.flow")) {
+  if (options.filepath?.endsWith(".js.flow")) {
     return true;
   }