Add security rules for system() usage in C/C++ and JWT expiry in C##152

ganeshpatro321 merged 20 commits intocoderabbitai:maincoderabbitai/ast-grep-essentials:mainfrom

ESS-ENN:dont-call-system-c-cpp-and-jwt-csharpESS-ENN/ast-grep-essentials:dont-call-system-c-cpp-and-jwt-csharpCopy head branch name to clipboard