test: replace forEach with for...of in test-fs-realpath-buffer-encoding

PR-URL: #49804
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Yongsheng Zhang <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: niyashiyas

test/parallel/test-fs-realpath-buffer-encoding.js

@@ -10,9 +10,9 @@ const buffer_dir = Buffer.from(string_dir);
 const encodings = ['ascii', 'utf8', 'utf16le', 'ucs2',
                    'base64', 'binary', 'hex'];
 const expected = {};
-encodings.forEach((encoding) => {
+for (const encoding of encodings) {
   expected[encoding] = buffer_dir.toString(encoding);
-});
+}
 
 
 // test sync version