[enhancement]: Add macOS 15 Sequoia support (x64 and ARM64)

[gentledepp]

Add macOS 15 Sequoia support

Since updating to macOs 15.1, our build agent fails to run our pipeline.
It hangs forever... we are using the x64 agent on an m1 mac - so we tried to switch to arm64, but then we get an error

System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. ---> System.DllNotFoundException: Unable to load shared library 'libSystem.Security.Cryptography.Native.Apple' or one of its dependencies.

Brief description of tool
Latest major macOS version released by Apple.

URL for tool's homepage
https://developer.apple.com/documentation/macos-release-notes/macos-15-release-notes

Please add support for macOS 15 x64 and ARM64 agents:
https://learn.microsoft.com/en-us/azure/devops/pipelines/agents/osx-agent?view=azure-devops#check-prerequisites