Upgrade to LLVM 19

Author: IsaacShelton

.github/workflows/remoteBuild.yml

@@ -127,7 +127,7 @@ jobs:
         run: |
           cmake -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DADEPT_LINK_LLVM_STATIC=On -B ${{github.workspace}}/build -G Ninja
         env:
-          CC: /opt/homebrew/opt/llvm/bin/clang
+          CC: gcc
           LLVM_DIR: /opt/homebrew/opt/llvm
           zstd_DIR: /usr/local/opt/zstd
           CFLAGS: -static-libstdc++