Update stable tag to 6.7.1

Author: cbravobernal

readme.txt

@@ -4,7 +4,7 @@ Tags: fields, custom fields, meta, scf
 Requires at least: 6.0
 Tested up to: 6.9
 Requires PHP: 7.4
-Stable tag: 6.7.0
+Stable tag: 6.7.1
 License: GPLv2 or later
 License URI: https://www.gnu.org/licenses/gpl-2.0.html