ci: don't install any package with pip, it's supposed to be preinstalled

.gitlab/ci/lint.gitlab-ci.yml

@@ -1,6 +1,3 @@
-.install_tox: &install_tox
-    - pip3 install -U tox --break-system-packages
-
 ########################################
 # LINTER
 ########################################
@@ -11,8 +8,6 @@ lint311:
   image: "before-install"
   needs: []
   allow_failure: true
-  before_script:
-    - *install_tox
   script:
     - tox -e py311-lint
 
@@ -20,8 +15,6 @@ invalidcode311:
   stage: lint
   image: "before-install"
   needs: []
-  before_script:
-    - *install_tox
   script:
     - tox -e py311-invalidcode
 
@@ -29,8 +22,6 @@ mypy:
   stage: lint
   image: "before-install"
   needs: []
-  before_script:
-    - *install_tox
   script:
     - tox -e py311-mypy
 
@@ -38,8 +29,6 @@ black:
   stage: lint
   image: "before-install"
   needs: []
-  before_script:
-    - *install_tox
   before_script:
     - apt-get update -y && apt-get install git hub -y
     - git config --global user.email "yunohost@yunohost.org"

.gitlab/ci/test.gitlab-ci.yml

@@ -1,7 +1,6 @@
 .install_debs: &install_debs
     - apt-get update -o Acquire::Retries=3
     - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb php8.2-cli mariadb-client mariadb-server
-    - pip3 install -U mock pip pytest pytest-cov pytest-mock pytest-sugar requests-mock tox ansi2html black jinja2 "packaging<22" --break-system-packages # for bookworm
 
 .test-stage:
   stage: test