build: Target .NET 8 and .NET 9

[hangy]

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[Copilot]

Pull Request Overview

This PR updates the project to multi-target both .NET 8 and .NET 9, expanding from the previous .NET 9-only targeting. The change enables broader compatibility while maintaining support for the latest .NET version.

• Changes project targeting from single framework (net9.0) to multi-framework (net8.0;net9.0)
• Updates package lock files to include dependency resolution for both target frameworks
• Maintains existing functionality while expanding platform support

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Directory.Build.props	Updated TargetFramework to TargetFrameworks with both net8.0 and net9.0
tests/AlbusKavaliro.TraceableLdapClient.Tests/packages.lock.json	Added net8.0 dependency resolution alongside existing net9.0
src/AlbusKavaliro.TraceableLdapClient/packages.lock.json	Added net8.0 dependency resolution alongside existing net9.0
example/WorkerService/packages.lock.json	Added net8.0 dependency resolution alongside existing net9.0
example/ServiceDefaults/packages.lock.json	Added net8.0 dependency resolution alongside existing net9.0
example/AppHost/packages.lock.json	Added net8.0 dependency resolution alongside existing net9.0

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[github-actions]

🎉 This PR is included in version 1.0.0-beta.4 🎉

The release is available on:

• v1.0.0-beta.4
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This PR is included in version 1.0.0 🎉

The release is available on:

• v1.0.0
• GitHub release

Your semantic-release bot 📦🚀