Updated all main and test project files to include net10.0 (and net10.0-windows10.0.17763.0 where applicable) in their TargetFrameworks. This prepares the codebase for compatibility and testing with the upcoming .NET 10.0 release.
Moved the ParallelizeAttribute configuration from individual test project files to the shared Community.Toolkit.Common.targets file. This centralizes the configuration and ensures all test projects run tests in parallel by default.
Added the Microsoft.VisualStudio.TestTools.UnitTesting.ParallelizeAttribute to all MSTest-based unit test project files to enable parallel test execution. This change should improve test run performance by allowing tests to run concurrently.
Upgraded MSTest.TestAdapter and MSTest.TestFramework from version 3.11.0 to 4.0.1 across all unit test project files to ensure compatibility with the latest features and bug fixes.
Upgrades MSTest.TestAdapter and MSTest.TestFramework from 3.6.4 to 3.11.0 across all unit test project files to ensure compatibility with latest features and bug fixes.