docs(readme): use non-active style for C++ header link

Author: deathbycaptcha-dev

README.md

@@ -9,7 +9,7 @@
   <a href="https://github.com/deathbycaptcha/deathbycaptcha-api-client-php"><img alt="PHP" src="https://img.shields.io/badge/PHP-777BB4?style=for-the-badge&logo=php&logoColor=white"></a>
   <a href="https://github.com/deathbycaptcha/deathbycaptcha-api-client-perl"><img alt="Perl" src="https://img.shields.io/badge/Perl-39457E?style=for-the-badge&logo=perl&logoColor=white"></a>
   <a href="https://github.com/deathbycaptcha/deathbycaptcha-api-client-c11"><img alt="C" src="https://img.shields.io/badge/C-A8B9CC?style=for-the-badge&logo=c&logoColor=black"></a>
-  <a href="https://github.com/deathbycaptcha/deathbycaptcha-api-client-cpp"><img alt="C++" src="https://img.shields.io/badge/%3E-C%2B%2B-00599C?style=for-the-badge&logo=cplusplus&logoColor=white&labelColor=555555"></a>
+  <a href="https://github.com/deathbycaptcha/deathbycaptcha-api-client-cpp"><img alt="C++" src="https://img.shields.io/badge/C%2B%2B-00599C?style=for-the-badge&logo=cplusplus&logoColor=white"></a>
 </p>