replace conan recipe with command line params

Signed-off-by: Anton Dukhovnikov <antond@wetafx.co.nz>

Author: antond-weta

.github/workflows/build-steps.yml

@@ -80,7 +80,7 @@ jobs:
         shell: bash
         run: |
           conan profile detect --force
-          conan install . --output-folder=build_deps --build=missing
+          conan install --requires=nlohmann_json/3.12.0 --requires=nanobind/2.9.2 --generator CMakeDeps --generator CMakeToolchain --output-folder=build_deps --build=missing
           python -m pip install pytest
     
       - name: Configure CMake