GitLab ci modify paths

So sissopp._sisso can be found

.gitlab-ci.yml

@@ -374,7 +374,7 @@ pages:
   script:
     - source cpp_sisso_gnu_lcov_env/bin/activate
     - export LD_LIBRARY_PATH=$HOME/intel/oneapi/intelpython/latest/lib/:$HOME/intel/oneapi/intelpython/latest/lib/python3.7:$LD_LIBRARY_PATH
-    - export PYTHONPATH=$HOME/intel/oneapi/intelpython/latest/lib/python3.7/site-packages/:cpp_sisso_gnu_lcov_env/lib/python3.7/site-packages/
+    - export PYTHONPATH=$HOME/intel/oneapi/intelpython/latest/lib/python3.7/site-packages/:`pwd`/cpp_sisso_gnu_lcov_env/lib/python3.7/site-packages/
     - cd docs/
     - make html
     - mv _build/html/ ../public