chore: Remove all conan options and use purely CMake targets (#2538)

Closes: https://github.com/XRPLF/clio/pull/2535

.github/actions/cmake/action.yml

@@ -64,6 +64,7 @@ runs:
           -DCMAKE_TOOLCHAIN_FILE:FILEPATH=build/generators/conan_toolchain.cmake \
           -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
           "${SANITIZER_OPTION}" \
+          -Dtests=ON \
           -Dintegration_tests="${INTEGRATION_TESTS}" \
           -Dbenchmark="${BENCHMARK}" \
           -Dcoverage="${COVERAGE}" \