build: test_package swithced to use new Conan toolchains

test_package/CMakeLists.txt

@@ -27,4 +27,3 @@ find_package(mp-units CONFIG REQUIRED)
 
 add_executable(test_package test_package.cpp)
 target_link_libraries(test_package PRIVATE mp::units)
-target_compile_features(test_package PRIVATE cxx_std_20)

test_package/conanfile.py

@@ -20,12 +20,17 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from conans import ConanFile, CMake, tools, RunEnvironment
+from conans import ConanFile, tools, RunEnvironment
+from conan.tools.cmake import CMakeToolchain, CMake
 
 class TestPackageConan(ConanFile):
     settings = "os", "compiler", "build_type", "arch"
     generators = "cmake_find_package_multi"
     
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.generate()
+
     def build(self):
         cmake = CMake(self)
         cmake.configure()