C#: Initial .NET 10 integration tests.

[michaelnebel]

Added some .NET 10 integration tests for traced and buildless (replacing the .NET 10 RC 2 integration tests we ran on Windows and Linux). We do not officially support .NET 10.

[Copilot]

Pull Request Overview

This PR replaces the .NET 10 RC 2 integration tests with .NET 10 final release integration tests. The platform-specific tests (Windows and Linux) are removed in favor of a single all-platforms test that covers both traced and buildless build modes.

• Removes .NET 10 RC 2 tests from windows/dotnet_10_rc2 and linux/dotnet_10_rc2 directories
• Adds new .NET 10 final release tests in all-platforms/dotnet_10 directory
• Tests both traced mode (test1) and buildless mode (test2)

Reviewed Changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
csharp/ql/integration-tests/windows/dotnet_10_rc2/test.py	Removed RC 2 test file for Windows
csharp/ql/integration-tests/windows/dotnet_10_rc2/global.json	Removed RC 2 SDK configuration for Windows
csharp/ql/integration-tests/windows/dotnet_10_rc2/dotnet_build.csproj	Removed RC 2 project file for Windows
csharp/ql/integration-tests/windows/dotnet_10_rc2/Program.cs	Removed RC 2 test program for Windows
csharp/ql/integration-tests/linux/dotnet_10_rc2/test.py	Removed RC 2 test file for Linux
csharp/ql/integration-tests/linux/dotnet_10_rc2/global.json	Removed RC 2 SDK configuration for Linux
csharp/ql/integration-tests/all-platforms/dotnet_10/test.py	Added new test with traced and buildless modes for .NET 10 final release
csharp/ql/integration-tests/all-platforms/dotnet_10/global.json	Added SDK configuration for .NET 10.0.100 final release
csharp/ql/integration-tests/all-platforms/dotnet_10/dotnet_build.csproj	Added .NET 10 project file with net10.0 target framework
csharp/ql/integration-tests/all-platforms/dotnet_10/Program.cs	Added simple test program that outputs command-line arguments

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[Copilot]

The runs_on module is imported but never used. Since this test is in the all-platforms directory and the test functions don't have any @runs_on decorators, this import can be removed.

Suggested change

import runs_on

[Copilot]

The os module is imported but never used in this file. Consider removing this unused import.

Suggested change

import os