tools: fix typo in js2c.py

PR-URL: #28417
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

tools/js2c.py

@@ -29,7 +29,7 @@
 
 """
 This is a utility for converting JavaScript source code into uint16_t[],
-that are used for embeding JavaScript code into the Node.js binary.
+that are used for embedding JavaScript code into the Node.js binary.
 """
 import argparse
 import os