Upgrade to LLVM 19

Author: onelxj

check-code-style/action.yml

@@ -16,7 +16,7 @@ runs:
       run: |
         # Install Clang (including clang-format) through LLVM's preferred mechanism:
         #   https://apt.llvm.org/
-        CLANG_VERSION=14
+        CLANG_VERSION=19
         wget https://apt.llvm.org/llvm.sh
         chmod +x llvm.sh
         sudo ./llvm.sh ${CLANG_VERSION}