Update cmake-single-platform.yml

Author: michelguillaume

.github/workflows/cmake-single-platform.yml

@@ -40,7 +40,7 @@ jobs:
         # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
         run: cmake -B build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} \
                             -DBUILD_TESTS=${{env.BUILD_TESTS}} \
-                            -DCMAKE_TOOLCHAIN_FILE=build/Debug/generators/conan_toolchain.cmake
+                            -DCMAKE_TOOLCHAIN_FILE=${{github.workspace}}/build/Debug/generators/conan_toolchain.cmake
 
       - name: Build
         # Build your program with the given configuration