Modernize repository to match other ImmediatePlatform products

[viceroypenguin]

No description provided.

[Copilot]

Pull request overview

Modernizes the repo’s build/test/release setup to align with other ImmediatePlatform products by centralizing framework configuration, updating dependencies, switching the functional tests over to xUnit v3 (MTP), and updating GitHub Actions workflows (including NuGet publishing via OIDC).

Changes:

• Centralize multi-targeting and compiler settings in Directory.Build.props (now targets net8.0/net9.0/net10.0; sets LangVersion to 14).
• Update package versions and test dependencies (move functional tests to xunit.v3.mtp-v2, update analyzers/polyfill).
• Update CI/release workflows (add .NET 10, adjust dotnet test, and use NuGet OIDC login for publishing).

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/Immediate.Cache.FunctionalTests/Immediate.Cache.FunctionalTests.csproj	Updates test project dependencies and properties (now relies on centralized TFM settings).
tests/Immediate.Cache.FunctionalTests/ApplicationCacheTests.cs	Migrates test attributes to xUnit and threads cancellation tokens through calls.
src/Immediate.Cache/Immediate.Cache.csproj	Removes per-project TFMs to inherit from centralized build props.
src/Immediate.Cache.Shared/Immediate.Cache.Shared.csproj	Removes per-project TFMs and simplifies project file (now inherits centralized settings).
Directory.Packages.props	Updates central package versions; adds net10.0-conditioned package versions; updates analyzer/polyfill setup.
Directory.Build.props	Centralizes TargetFrameworks and sets LangVersion to 14; moves warnings-as-errors to CI only.
.github/workflows/release.yml	Updates release pipeline; adds .NET 10; switches NuGet publishing to OIDC-based login.
.github/workflows/build.yml	Updates CI build/test to include .NET 10 and removes GitHubActions logger usage.

[Copilot]

Removing the conditional MSBuild <Using Alias="Lock" Include="System.Object" ...> breaks builds for net8.0: the code uses the Lock type (e.g., ApplicationCacheBase.cs), but Lock is only available on newer frameworks. Since the repo still targets net8.0 (via Directory.Build.props), reintroduce a conditional alias for net8.0 (or change the code to use object / conditional compilation) so multi-targeting continues to compile.

Suggested change

	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
	<Using Include="System.Object" Alias="Lock" />
	</ItemGroup>

[Copilot]

This test project still targets net8.0 (via Directory.Build.props) but no longer defines the conditional Lock alias; DelayGetValue.cs uses Lock, which will fail to compile on net8.0. Add back a conditional MSBuild <Using Alias="Lock" Include="System.Object" ...> for net8.0 (or update the code to avoid Lock on older TFMs).

[Copilot]

Setting <LangVersion>14</LangVersion> effectively requires a .NET SDK/new enough compiler for all contributors. Since there is no global.json in the repo to pin/declare the required SDK, builds may fail inconsistently depending on the locally installed SDK. Consider adding a global.json that pins a compatible SDK (or reverting to latest/latestMajor) to make the requirement explicit.

Suggested change

	<LangVersion>14</LangVersion>
	<LangVersion>latest</LangVersion>