fix: do not wrongfully match application/javascript mime

Fixes: nodejs#48957

Author: Xstoudi

lib/internal/modules/esm/formats.js

@@ -24,12 +24,7 @@ if (experimentalWasmModules) {
  * @returns {string | null}
  */
 function mimeToFormat(mime) {
-  if (
-    RegExpPrototypeExec(
-      /\s*(text|application)\/javascript\s*(;\s*charset=utf-?8\s*)?/i,
-      mime,
-    ) !== null
-  ) return 'module';
+  if (mime === 'text/javascript') return 'module';
   if (mime === 'application/json') return 'json';
   if (experimentalWasmModules && mime === 'application/wasm') return 'wasm';
   return null;