Fix broken test-example-repos job on darwin/win32 #19954
Description
On September 14th 2021 CircleCI removed the Xcode 10.1.0 runner: https://discuss.circleci.com/t/xcode-deprecation-notice-9-4-1-10-0-0-10-1-0-and-10-2-1/40515
This broke the Mac testing workflow for cypress-test-example-repos since we use that version: https://app.circleci.com/pipelines/github/cypress-io/cypress-test-example-repos/9669/workflows/31dc5128-0eda-4241-9b86-dd6f56796f12
There is also some issue causing the status check on the cypress repo to erroneously report "passed" even though the tests did not run because the AppVeyor job is reporting "passed": https://ci.appveyor.com/project/cypress-io/cypress-test-example-repos/builds/42364888