Registers ts-node regardless of dev/prod context

Author: danieldelcore

.changeset/metal-chicken-protect.md

@@ -0,0 +1,5 @@
+---
+'@codeshift/cli': patch
+---
+
+Registers ts-node regardless of dev/prod usage to allow for requires/require.resolve of ts files via configs

packages/cli/bin/codeshift-cli.js

@@ -3,12 +3,13 @@
 
 const fs = require('fs');
 const path = require('path');
+
 const project = path.join(__dirname, '../tsconfig.json');
 const dev = fs.existsSync(project);
 
-if (dev && !require.extensions['.ts']) {
+if (!require.extensions['.ts']) {
   // ts-node can only handle being registered once, see https://github.com/TypeStrong/ts-node/issues/409
-  require('ts-node').register({ project });
+  require('ts-node').register(dev ? { project } : {});
 }
 
 try {