fix(readme): Update stable tag for 2.5.2 [skip ci]

Author: julienloizelet

readme.txt

@@ -4,7 +4,7 @@ Donate link: https://crowdsec.net/
 Tags: crowdsec-bouncer, wordpress, security, firewall, captcha, ip-scanner, ip-blocker, ip-blocking, ip-address, ip-database, ip-range-check, crowdsec, ban-hosts, ban-management, anti-hacking, hacker-protection, captcha-image, captcha-generator, captcha-generation, captcha-service
 Requires at least: 4.9
 Tested up to: 6.4
-Stable tag: 2.5.1
+Stable tag: 2.5.2
 Requires PHP: 7.2
 License: MIT
 License URI: https://opensource.org/licenses/MIT