Update pipeline

.gitlab-ci.yml

@@ -5,19 +5,17 @@ stages:
 
 image: python:3.11-bullseye
 
-variables:
-  PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
-
 cache:
   paths:
-    - .cache/pip
+    - .venv
+  key: "${CI_COMMIT_REF_SLUG}"
 
 build-env:
   stage: build
   script:
     - pip install poetry
     - cd build/
-    - poetry config virtualenvs.create false
+    - poetry config settings.virtualenvs.in-project true
     - poetry install
     - cd ..