feat: Upgrade to dotnet version 10

[askpt]

This PR

This pull request adds support for .NET 10.0 across the codebase, updating project files, dependencies, and build/test configurations to ensure compatibility. It also updates the devcontainer and global SDK version to .NET 10.0, and makes minor dependency version bumps for related packages.

.NET 10.0 Support and Configuration Updates:

• Added net10.0 to TargetFrameworks in main, test, and sample project files, ensuring all relevant projects can build and run against .NET 10.0. (src/Directory.Build.props, test/Directory.Build.props, test/OpenFeature.AotCompatibility/OpenFeature.AotCompatibility.csproj, test/OpenFeature.Benchmarks/OpenFeature.Benchmarks.csproj, test/OpenFeature.IntegrationTests/OpenFeature.IntegrationTests.csproj, [1] [2] [3] [4] [5]
• Updated the devcontainer image and feature configuration to use .NET 10.0 as the primary version, with 9.0 and 8.0 as additional runtimes. (.devcontainer/devcontainer.json, .devcontainer/devcontainer.jsonL3-R7)
• Updated global.json to require .NET SDK version 10.0.100. (global.json, global.jsonL4-R4)
• Updated AOT compatibility documentation to mention net10.0 as a valid target. (docs/AOT_COMPATIBILITY.md, docs/AOT_COMPATIBILITY.mdL29-R29)
• Updated AOT workflow to include -f net10.0 in the publish step. (.github/workflows/aot-compatibility.yml, .github/workflows/aot-compatibility.ymlR84)

Dependency and Package Version Updates:

• Added conditional property groups and package references for net10.0 in Directory.Packages.props, including Microsoft.Extensions.Diagnostics.Testing and Microsoft.AspNetCore.TestHost at version 10.0.0. (Directory.Packages.props, [1] [2] [3]

Test Project Adjustments:

• Cleaned up and unified TargetFrameworks handling in test project files to align with new .NET 10.0 support. (test/OpenFeature.E2ETests/OpenFeature.E2ETests.csproj, test/OpenFeature.Hosting.Tests/OpenFeature.Hosting.Tests.csproj, test/OpenFeature.Providers.MultiProvider.Tests/OpenFeature.Providers.MultiProvider.Tests.csproj, test/OpenFeature.Tests/OpenFeature.Tests.csproj, [1] [2] [3] [4]

Related Issues

Fixes #647

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.21%. Comparing base (4080f03) to head (6290e2b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #658   +/-   ##
=======================================
  Coverage   93.21%   93.21%           
=======================================
  Files          69       69           
  Lines        2993     2993           
  Branches      359      359           
=======================================
  Hits         2790     2790           
  Misses        143      143           
  Partials       60       60           

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