ci: Bump lint task image to Ubuntu Jammy

Author: hebasto

.cirrus.yml

@@ -64,10 +64,10 @@ compute_credits_template: &CREDITS_TEMPLATE
   use_compute_credits: $CIRRUS_REPO_FULL_NAME == 'bitcoin/bitcoin' && $CIRRUS_PR != ""
 
 task:
-  name: 'lint [bionic]'
+  name: 'lint [jammy]'
   << : *BASE_TEMPLATE
   container:
-    image: ubuntu:bionic
+    image: ubuntu:jammy
     cpu: 1
     memory: 1G
   # For faster CI feedback, immediately schedule the linters

ci/lint/04_install.sh

@@ -27,14 +27,6 @@ export PATH="${PYTHON_PATH}/bin:${PATH}"
 command -v python3
 python3 --version
 
-(
-  # Temporary workaround for https://github.com/bitcoin/bitcoin/pull/26130#issuecomment-1260499544
-  # Can be removed once the underlying image is bumped to something that includes git2.34 or later
-  sed -i -e 's/bionic/jammy/g' /etc/apt/sources.list
-  ${CI_RETRY_EXE} apt-get update
-  ${CI_RETRY_EXE} apt-get install -y --reinstall git
-)
-
 ${CI_RETRY_EXE} pip3 install codespell==2.2.1
 ${CI_RETRY_EXE} pip3 install flake8==4.0.1
 ${CI_RETRY_EXE} pip3 install mypy==0.942