Try #8 for vcpkg w/github actions

Author: CJLove

.github/workflows/ci.yml

@@ -71,7 +71,7 @@ jobs:
         run: |
           mkdir -p build && cd build
           cmake .. \
-            -DCMAKE_TOOLCHAIN_FILE=/__w/b/vcpkg/scripts/buildsystems/vcpkg.cmake \
+            -DCMAKE_TOOLCHAIN_FILE=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake \
             -DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} \
             -DCMAKE_CXX_STANDARD=${{ matrix.config.cppstd }} \
             -DBUILD_EXAMPLES=${{ matrix.config.examples || 'ON' }} \