Update pipeline

.gitlab-ci.yml

@@ -5,18 +5,24 @@ stages:
 
 image: python:3.11-bullseye
 
+variables:
+  PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+
 cache:
+  key: "${CI_JOB_NAME}"
+
   paths:
+    - .cache/pip
     - .venv
-  key: "${CI_COMMIT_REF_SLUG}"
 
 build-env:
   stage: build
   script:
     - pip install poetry
+    - poetry --version
     - cd build/
     - poetry config settings.virtualenvs.in-project true
-    - poetry install
+    - poetry install -vv
     - cd ..
   
 test-jobs: