codeowners: add rule for *.gypi files

PR-URL: #20740
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Vse Mozhet Byt <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>

Author: bnoordhuis

.github/CODEOWNERS

@@ -56,6 +56,7 @@
 *.md @nodejs/documentation
 *.py @nodejs/python
 *.gyp @nodejs/gyp
+*.gypi @nodejs/gyp
 
 Makefile @nodejs/build
 vcbuild.bat @nodejs/build