refactor: update fs access check to use constants module

Author: mfilip

bin/exec.js

@@ -1,8 +1,8 @@
-const { access, F_OK } = require("fs");
+const { access, constants } = require("fs");
 const { resolve } = require("path");
 
 const exec = (path) => {
-  access(resolve(__dirname, `${path}.js`), F_OK, (error) => {
+  access(resolve(__dirname, `${path}.js`), constants.F_OK, (error) => {
     if (error) {
       console.log(`Unable to execute script ${path}`);
       console.log("Remember to compile project with `npm run build`");