[release/7.0.2xx-xcode14.3] [msbuild] Fix calling the GetFileSystemEntries task on Windows when not connected to a Mac.

[vs-mobiletools-engineering-service2]

Given the following truths:

• A task will (try to) connect to a Mac if its SessionId property isn't empty.
• The BuildSessionId property is always set on Windows when building from an IDE (even if not connected to a remote Mac).

It stands to reason that we can't use BuildSessionId to distinguish between
connected/not conected status on Windows. Instead introduce a new property,
BuildSessionIdIfConnected, which is only set if connected to a Mac (i.e. if
'IsMacEnabled=true').

Fixes https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1808448 (second attempt).

Backport of #18287

[vs-mobiletools-engineering-service2]

💻 [CI Build] Windows Integration Tests passed 💻

✅ All Windows Integration Tests passed.

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Hash: 9d072e2fb0ecef6e3f55a7e45720da385de79ed7 [PR build]

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

NET (empty diffs)

• iOS: (empty diff detected)
• tvOS: (empty diff detected)
• MacCatalyst: (empty diff detected)
• macOS: (empty diff detected)

✅ API diff vs stable

.NET (No breaking changes)

• iOS: vsdrops gist (No breaking changes)
• tvOS: vsdrops gist (No breaking changes)
• MacCatalyst: vsdrops gist (No breaking changes)
• macOS: vsdrops gist (No breaking changes)
• Microsoft.iOS vs Microsoft.MacCatalyst: vsdrops gist

✅ Generator diff

Generator diff is empty

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Hash: 9d072e2fb0ecef6e3f55a7e45720da385de79ed7 [PR build]

[vs-mobiletools-engineering-service2]

📚 [PR Build] Artifacts 📚

Packages generated

View packages

• Microsoft.iOS.Bundle.16.4.7061-ci.pr.gh18299.pkg
• Microsoft.iOS.Ref.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Runtime.ios-arm.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Runtime.ios-arm64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Runtime.iossimulator-arm64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Runtime.iossimulator-x64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Runtime.iossimulator-x86.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Sdk.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Templates.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.iOS.Windows.Sdk.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.MacCatalyst.Bundle.16.4.7061-ci.pr.gh18299.pkg
• Microsoft.MacCatalyst.Ref.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.MacCatalyst.Runtime.maccatalyst-arm64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.MacCatalyst.Runtime.maccatalyst-x64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.MacCatalyst.Sdk.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.MacCatalyst.Templates.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.macOS.Bundle.13.3.7061-ci.pr.gh18299.pkg
• Microsoft.macOS.Ref.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.macOS.Runtime.osx-arm64.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.macOS.Runtime.osx-x64.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.macOS.Sdk.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.macOS.Templates.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.NET.Sdk.iOS.Manifest-7.0.100.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.NET.Sdk.MacCatalyst.Manifest-7.0.100.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.NET.Sdk.macOS.Manifest-7.0.100.13.3.7061-ci.pr.gh18299.nupkg
• Microsoft.NET.Sdk.tvOS.Manifest-7.0.100.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.NET.Workload.iOS.16.4.7061-ci.pr.gh18299.msi
• Microsoft.tvOS.Bundle.16.4.7061-ci.pr.gh18299.pkg
• Microsoft.tvOS.Ref.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.tvOS.Runtime.tvos-arm64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.tvOS.Runtime.tvossimulator-arm64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.tvOS.Runtime.tvossimulator-x64.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.tvOS.Sdk.16.4.7061-ci.pr.gh18299.nupkg
• Microsoft.tvOS.Templates.16.4.7061-ci.pr.gh18299.nupkg
• xamarin.ios-16.5.0.27.pkg
• xamarin.mac-9.4.0.27.pkg

Pipeline on Agent XAMBOT-1023.Ventura
Hash: 9d072e2fb0ecef6e3f55a7e45720da385de79ed7 [PR build]

[vs-mobiletools-engineering-service2]

💻 [PR Build] Tests on macOS M1 - Mac Ventura (13.0) passed 💻

✅ All tests on macOS M1 - Mac Ventura (13.0) passed.

Pipeline on Agent
Hash: 9d072e2fb0ecef6e3f55a7e45720da385de79ed7 [PR build]

[vs-mobiletools-engineering-service2]

💻 [PR Build] Tests on macOS M1 - Mac Big Sur (11.5) passed 💻

✅ All tests on macOS M1 - Mac Big Sur (11.5) passed.

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[vs-mobiletools-engineering-service2]

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✅ All tests passed on VSTS: simulator tests.

🎉 All 79 tests passed 🎉

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Hash: 9d072e2fb0ecef6e3f55a7e45720da385de79ed7 [PR build]