Update .gitlab-ci

Workflow needed to build the parameterized nodes

.gitlab-ci.yml

@@ -14,7 +14,7 @@ build-gnu:
     - export PYTHONPATH=/opt/anaconda/3/2020.11/lib/python3.8/site-packages/:sissopp_env/lib/python3.8/site-packages/
     - mkdir build_gcc/
     - cd build_gcc/
-    - cmake -C ../cmake/toolchains/gnu_py.cmake -DBUILD_TESTS=ON ../
+    - cmake -C ../cmake/toolchains/gnu_param_py.cmake -DBUILD_TESTS=ON ../
     - make
     - make install
     - cd ../