gitlab-ci: simplify ubuntu_jammy_pip job, babel is not needed

Babel runs on install now, before it was used to pre-generated the
compiled gettext files.

.gitlab-ci.yml

@@ -1,3 +1,4 @@
+---
 
 variables:
   pip: pip3 --timeout 100 --retries 10
@@ -136,16 +137,14 @@ ubuntu_jammy_pip:
   <<: *apt-template
   script:
     - apt-get install git default-jdk-headless python3-pip python3-venv rsync
-    - rm -rf env
-    - python3 -m venv env
-    - . env/bin/activate
-    - $pip install --upgrade babel pip setuptools
+
     # setup venv to act as release build machine
-    - python -m venv sdist-env
+    - python3 -m venv sdist-env
     - . sdist-env/bin/activate
     - ./setup.py sdist
     - deactivate
     - tar tzf dist/fdroidserver-*.tar.gz
+
     # back to bare machine to act as user's install machine
     - export ANDROID_HOME=/opt/android-sdk
     - $pip install sdkmanager

.yamllint

@@ -0,0 +1,5 @@
+---
+
+extends: default
+rules:
+  line-length: disable