chore : moved dep install to default:get deps job

.gitlab/ci/default.gitlab-ci.yml

@@ -60,6 +60,9 @@ variables:
         "aidge_backend_opencv" )
           apt-get install -y -qq libopencv-dev
           ;;
+        "aidge_onnx" )
+          python -m pip install requests
+          ;;
         * )
           ;;
       esac

.gitlab/ci/ubuntu_python.gitlab-ci.yml

@@ -44,6 +44,7 @@ test:ubuntu_python:
   before_script:
     - !reference [.retrieve_deps:apt, script]
     - source venv/bin/activate
+    - which python
     - python -m pip install unittest-xml-reporting pytest
     - which python
     - python -m pip list