Update tested upto version to 6.1

Author: pavanpatil1

README.md

@@ -7,7 +7,7 @@
 
 **Requires at least:** 3.0
 
-**Tested up to:** 5.7
+**Tested up to:** 6.1
 
 **Stable tag:** 2.2.2
 

readme.txt

@@ -5,7 +5,7 @@ Tags: nginx, cache, purge, nginx map, nginx cache, maps, fastcgi, proxy, redis,
 License: GPLv2 or later (of-course)
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 Requires at least: 3.0
-Tested up to: 5.7
+Tested up to: 6.1
 Stable tag: 2.2.2
 
 Cleans nginx's fastcgi/proxy cache or redis-cache whenever a post is edited/published. Also does a few more things.