remove macOS ARM64 builds (#1247)

...which have never worked.  Maybe this will work with CIBUILDWHEEL eventually but until it does, drop them.

Author: keitherskine

.github/workflows/artifacts_build.yml

@@ -32,6 +32,8 @@ jobs:
     strategy:
       matrix:
         # https://docs.github.com/en/actions/using-jobs/choosing-the-runner-for-a-job
+        # ubuntu-20.04 supports more versions of Python than ubuntu-22.04
+        # https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json
         os: [windows-2019, macos-11, ubuntu-20.04]
 
     steps:
@@ -45,14 +47,15 @@ jobs:
           platforms: all
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.11.2
+        uses: pypa/cibuildwheel@v2.13.1
         # https://cibuildwheel.readthedocs.io/en/stable/options/#options-summary
         env:
           # Windows - both 64-bit and 32-bit builds
           CIBW_ARCHS_WINDOWS: "AMD64 x86"
 
-          # macOS - both Intel and ARM builds; no bundled libraries
-          CIBW_ARCHS_MACOS: "x86_64 arm64"
+          # macOS - just Intel build (ARM doesn't work); no bundled libraries
+          # https://cibuildwheel.readthedocs.io/en/stable/faq/#how-to-cross-compile
+          CIBW_ARCHS_MACOS: x86_64
           # prevent the addition of unixODBC dylibs to the wheel by simply not calling the repair
           CIBW_REPAIR_WHEEL_COMMAND_MACOS: ""
 

.github/workflows/ubuntu_build.yml

@@ -5,14 +5,16 @@ on: [push, pull_request]
 jobs:
   run_tests:
     name: Run tests on Python ${{ matrix.python-version }}
+    # ubuntu-20.04 supports more versions of Python than ubuntu-22.04
+    # https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json
     runs-on: ubuntu-20.04
 
     strategy:
       fail-fast: false
       matrix:
+        # Github Actions no longer supports Python 2.7 (June 2023)
+        # https://github.com/actions/runner-images/issues/7401
         include:
-          - python-version: "2.7"
-            tests-dir: tests2
           - python-version: "3.6"
             tests-dir: tests3
           - python-version: "3.7"
@@ -161,7 +163,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}