babylon is now @babel/parser

--- a/babel-plugin-mamacro/index.js
+++ b/babel-plugin-mamacro/index.js
@@ -1,4 +1,4 @@
-const {parse} = require("babylon");
+const {parse} = require("@babel/parser");
 const generate = require("@babel/generator").default;
 
 const parserOptions = {