Added workaround for missing libclang on github ci

.github/workflows/build.yml

@@ -17,6 +17,8 @@ jobs:
         uses: crazy-max/ghaction-chocolatey@master
         with:
           args: install llvm
+      - name: set LIBCLANG_PATH
+        run: echo "LIBCLANG_PATH=$((gcm clang).source -replace "clang.exe")" >> $env:GITHUB_ENV
       - name: build
         shell: bash
         run: cargo build --workspace --verbose