Use llvm@18 to fix build issue.

Author: rkistner

.github/actions/build-wasm/action.yml

@@ -18,10 +18,10 @@ runs:
       shell: bash
       run: |
         brew install cmake
-        brew install llvm
+        brew install llvm@18
         brew install binaryen
         curl -sL https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-22/libclang_rt.builtins-wasm32-wasi-22.0.tar.gz | \
-        tar x -zf - -C /opt/homebrew/opt/llvm/lib/clang/18*
+        tar x -zf - -C /opt/homebrew/opt/llvm@18/lib/clang/18*
         curl -sS -L https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-22/wasi-sysroot-22.0.tar.gz | \
         sudo tar x -zf - -C /opt
     - name: Install Rust Nightly
@@ -32,7 +32,7 @@ runs:
     - name: Set environment variable
       shell: bash
       run: |
-        echo "/opt/homebrew/opt/llvm/bin" >> $GITHUB_PATH
+        echo "/opt/homebrew/opt/llvm@18/bin" >> $GITHUB_PATH
     - name: Flutter pub get
       working-directory: sqlite3
       shell: bash
@@ -43,5 +43,5 @@ runs:
       working-directory: sqlite3
       shell: bash
       run: |
-        cmake -Dwasi_sysroot=/opt/wasi-sysroot -Dclang=/opt/homebrew/opt/llvm/bin/clang -S assets/wasm -B .dart_tool/sqlite3_build --toolchain toolchain.cmake
+        cmake -Dwasi_sysroot=/opt/wasi-sysroot -Dclang=/opt/homebrew/opt/llvm@18/bin/clang -S assets/wasm -B .dart_tool/sqlite3_build --toolchain toolchain.cmake
         cmake --build .dart_tool/sqlite3_build/ -t output -j