Enable macOS CI on merge to main and daily timer (#1199)

Motivation: * Improve test coverage * Check test pass/fail status * Monitor CI throughput Modifications: Enable macOS CI to be run on all merges to main and on a daily timer. Result: Improved test coverage run out-of-band at the moment so we can get a feeling for if any changes need to be made in the repo or in the CI pipelines to ensure timely and stable checks.

Author: rnro

.github/workflows/main.yml

@@ -38,3 +38,9 @@ jobs:
  uses: apple/swift-nio/.github/workflows/cxx_interop.yml@main
  with:
  linux_5_9_enabled: false
+
+ macos-tests:
+ name: macOS tests
+ uses: apple/swift-nio/.github/workflows/macos_tests.yml@main
+ with:
+ build_scheme: swift-distributed-actors-Package