message: ci: Use cpu=1 for linter
diff: ### Global defaults
  -timeout_in: 120m # https://cirrus-ci.org/faq/#instance-timed-out
  -container:
  - # https://cirrus-ci.org/faq/#are-there-any-limits
  - # Each project has 16 CPU in total, assign 2 to each container, so that 8 tasks run in parallel
  - cpu: 2
  - memory: 8G # Set to 8GB to avoid OOM. https://cirrus-ci.org/guide/linux/#linux-containers
  - kvm: true # Use kvm to avoid spurious CI failures in the default virtualization cluster, see https://github.com/bitcoin/bitcoin/issues/20093
  env:
  PACKAGE_MANAGER_INSTALL: "apt-get update && apt-get install -y"
  MAKEJOBS: "-j4"
  @@ -30,6 +23,13 @@ base_template: &BASE_TEMPLATE
  ### Global task template
  global_task_template: &GLOBAL_TASK_TEMPLATE
  << : *BASE_TEMPLATE
  + timeout_in: 120m # https://cirrus-ci.org/faq/#instance-timed-out
  + container:
  + # https://cirrus-ci.org/faq/#are-there-any-limits
  + # Each project has 16 CPU in total, assign 2 to each container, so that 8 tasks run in parallel
  + cpu: 2
  + memory: 8G # Set to 8GB to avoid OOM. https://cirrus-ci.org/guide/linux/#linux-containers
  + kvm: true # Use kvm to avoid spurious CI failures in the default virtualization cluster, see https://github.com/bitcoin/bitcoin/issues/20093
  ccache_cache:
  folder: "/tmp/ccache_dir"
  depends_built_cache:
  @@ -62,6 +62,7 @@ task:
  << : *BASE_TEMPLATE
  container:
  image: ubuntu:bionic # For python 3.6, oldest supported version according to doc/dependencies.md
  + cpu: 1 # Cut bill in half for linting
  # For faster CI feedback, immediately schedule the linters. https://cirrus-ci.org/pricing/#compute-credits
  use_compute_credits: $CIRRUS_REPO_FULL_NAME == 'bitcoin/bitcoin'
  setup_script:
  