Fix typo that messed up ternary

Author: Starbuck5

.github/workflows/build-macos.yml

@@ -128,11 +128,11 @@ jobs:
       # We need this because our minimum is 10.11, different from default
       # of 10.9 on x86s
       # Related issue: https://github.com/pypa/cibuildwheel/issues/952
-      _PYTHON_HOST_PLATFORM: ${{ matrix.marcharch == 'x86_64' && 'macosx-10.11-x86_64' || 'macosx-11.0-arm64'}}
+      _PYTHON_HOST_PLATFORM: ${{ matrix.macarch == 'x86_64' && 'macosx-10.11-x86_64' || 'macosx-11.0-arm64'}}
 
       # Similarly, we need to tell CIBW that the wheel's linking steps
       # should be for 10.11 on x86
-      MACOSX_DEPLOYMENT_TARGET: ${{ matrix.marcharch == 'x86_64' && '10.11' || '11.0' }}
+      MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macarch == 'x86_64' && '10.11' || '11.0' }}
 
       CIBW_BUILD: ${{ matrix.pyversions }}