ci: use Xcode 13.2.1

When we upgraded the runner to macOS 11, the old Xcode path disappeared
and broke some builds. So let's switch to the latest Xcode on the macOS
11 runners to hopefully fix.

Author: indygreg

.github/workflows/wheel.yml

@@ -78,8 +78,8 @@ jobs:
 
       - name: Install Dependencies
         run: |
-          /Applications/Xcode_12.2.app/Contents/Developer/usr/bin/pip3 install --user --require-hashes -r ci/requirements.macoswheels.txt
-          /Applications/Xcode_12.2.app/Contents/Developer/usr/bin/pip3 install --user wheel
+          /Applications/Xcode_13.2.1.app/Contents/Developer/usr/bin/pip3 install --user --require-hashes -r ci/requirements.macoswheels.txt
+          /Applications/Xcode_13.2.1.app/Contents/Developer/usr/bin/pip3 install --user wheel
         if: ${{ matrix.py == 'cp38-*' && matrix.arch == 'arm64' }}
 
       - name: Build Wheel
@@ -89,12 +89,12 @@ jobs:
 
       - name: Build Wheel
         run: |
-          /Applications/Xcode_12.2.app/Contents/Developer/usr/bin/python3 setup.py bdist_wheel
+          /Applications/Xcode_13.2.1.app/Contents/Developer/usr/bin/python3 setup.py bdist_wheel
         env:
           _PYTHON_HOST_PLATFORM: 'macosx-11.0-arm64'
           ARCHFLAGS: '-arch arm64'
           MACOSX_DEPLOYMENT_TARGET: '11.0'
-          SDKROOT: '/Applications/Xcode_12.2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.0.sdk'
+          SDKROOT: '/Applications/Xcode_13.2.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk'
         if: ${{ matrix.py == 'cp38-*' && matrix.arch == 'arm64' }}
 
       - name: Upload Wheel