ci: fusionne l'étape install et lint

.gitlab-ci.yml

@@ -2,11 +2,10 @@ variables:
   DEBIAN_FRONTEND: noninteractive
 
 stages:
-  - install
   - lint
 
-install:
-  stage: install
+lint:
+  stage: lint
   image: debian:bookworm
   script:
   - apt-get update -y
@@ -15,19 +14,6 @@ install:
   - virtualenv --python=/usr/bin/python3 .
   - source bin/activate
   - pip3 install -r requirements.txt
-  cache:
-    key: $CI_COMMIT_REF_SLUG
-    paths:
-    - bin/
-    - lib/
-    - pyvenv.cfg
-    - ./*.latest.txt
-
-lint:
-  stage: lint
-  image: debian:bookworm
-  needs: [install]
-  script:
   - bin/pycodestyle --first --show-source --ignore=E501 *.py
   cache:
     key: $CI_COMMIT_REF_SLUG