AppVeyor: Bump cibuildwheel to 1.6.4

edenhill · edenhill · commit d158768e67a4 · 2020-11-02T10:28:06.000+01:00
diff --git a/tools/windows-build.bat b/tools/windows-build.bat
@@ -11,7 +11,7 @@ rem Download and install librdkafka from NuGet.
 call tools\windows-install-librdkafka.bat %LIBRDKAFKA_NUGET_VERSION% dest || exit /b 1
 
 pip install -U -r tests/requirements.txt -r confluent_kafka/avro/requirements.txt
-pip install cibuildwheel==0.12.0 || exit /b 1
+pip install cibuildwheel==1.6.4 || exit /b 1
 
 rem Build wheels (without tests)
 cibuildwheel --platform windows --output-dir wheelhouse || exit /b 1
