ci: Refactor: Remove CI_USE_APT_INSTALL

.github/workflows/ci.yml

@@ -15,14 +15,15 @@ on:
 
 env:
   DANGER_RUN_CI_ON_HOST: 1
-  TEST_RUNNER_TIMEOUT_FACTOR: 40
+  CI_FAILFAST_TEST_LEAVE_DANGLING: 1  # GHA does not care about dangling processes and setting this variable avoids killing the CI script itself on error
+  MAKEJOBS: '-j10'
 
 jobs:
   macos-native-x86_64:
     name: macOS 13 native, x86_64 [no depends, sqlite only, gui]
     # Use latest image, but hardcode version to avoid silent upgrades (and breaks).
     # See: https://github.com/actions/runner-images#available-images.
-    runs-on: macos-13
+    runs-on: macos-13  # Use M1 once available https://github.com/github/roadmap/issues/528
 
     # No need to run on the read-only mirror, unless it is a PR.
     if: github.repository != 'bitcoin-core/gui' || github.event_name == 'pull_request'
@@ -30,9 +31,6 @@ jobs:
     timeout-minutes: 120
 
     env:
-      MAKEJOBS: '-j4'
-      CI_USE_APT_INSTALL: 'no'
-      PACKAGE_MANAGER_INSTALL: 'echo'  # Nothing to do
       FILE_ENV: './ci/test/00_setup_env_mac_native.sh'
       BASE_ROOT_DIR: ${{ github.workspace }}