tools: enforce use of single quotes in editorconfig

PR-URL: https://github.com/nodejs/node/pull/36020
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.editorconfig

@@ -7,6 +7,7 @@ indent_size = 2
 indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
+quote_type = single
 
 [vcbuild.bat]
 end_of_line = crlf