🎨 Colorize test output under cibuildwheel

.github/workflows/ci.yaml

@@ -293,6 +293,11 @@ jobs:
         CIBW_PRERELEASE_PYTHONS: 'True'
         CIBW_TEST_REQUIRES: pytest setuptools  # 3.12+ no longer includes distutils, just always ensure setuptools is present
         CIBW_TEST_COMMAND: PYTHONUNBUFFERED=1 python -m pytest ${{ matrix.test_args || '{project}' }}  # default to test all
+        COLOR: yes
+        FORCE_COLOR: 1
+        MYPY_FORCE_COLOR: 1
+        PRE_COMMIT_COLOR: always
+        PY_COLORS: 1
       with:
         package-dir: >-
           ${{ steps.fetch_sdist.outputs.download-path
@@ -409,7 +414,12 @@ jobs:
         CIBW_PRERELEASE_PYTHONS: 'True'
         CIBW_TEST_REQUIRES: pytest setuptools
         CIBW_TEST_COMMAND: pip install pip --upgrade; cd {project}; PYTHONUNBUFFERED=1 pytest
+        COLOR: yes
+        FORCE_COLOR: 1
         MACOSX_DEPLOYMENT_TARGET: ${{ matrix.deployment_target || '10.9' }}
+        MYPY_FORCE_COLOR: 1
+        PRE_COMMIT_COLOR: always
+        PY_COLORS: 1
         SDKROOT: ${{ matrix.sdkroot || 'macosx' }}
       with:
         package-dir: >-
@@ -501,6 +511,11 @@ jobs:
         CIBW_TEST_COMMAND: 'python -m pytest {package}/src/c'
         # FIXME: /testing takes ~45min on Windows and has some failures...
         # CIBW_TEST_COMMAND='python -m pytest {package}/src/c {project}/testing'
+        COLOR: yes
+        FORCE_COLOR: 1
+        MYPY_FORCE_COLOR: 1
+        PRE_COMMIT_COLOR: always
+        PY_COLORS: 1
       with:
         package-dir: >-
           ${{ steps.fetch_sdist.outputs.download-path