fix: Correct link to release notes

[mikkelbu]

Fixes #1766

[Copilot]

Pull Request Overview

This PR updates the release notes URL across multiple package metadata files and documentation to reflect the new location in the NUnit documentation structure. The old path /articles/nunit/release-notes/console-and-engine.html has been replaced with /articles/nunit-engine/release-notes.html.

• Updated release notes links in project files and package specifications
• Corrected documentation references to point to the new URL structure

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/NUnitConsole/nunit4-netcore-console/nunit4-netcore-console.csproj	Updated PackageReleaseNotes URL to new location
src/Directory.Build.props	Updated both PackageReleaseNotes and ReleaseNotes properties to new URL
nuget/runners/nunit.console-runner.nuspec	Updated releaseNotes element to new URL
nuget/runners/nunit.console-runner-with-extensions.nuspec	Updated releaseNotes element to new URL
nuget/deprecated/nunit.runners.nuspec	Updated releaseNotes element to new URL
choco/nunit-console-runner.nuspec	Updated releaseNotes element to new URL
choco/deprecated/nunit-console-with-extensions.nuspec	Updated releaseNotes element to new URL
CONTRIBUTING.md	Updated release notes hyperlink in documentation contribution guidelines

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[CharliePoole]

@mikkelbu Thanks for this!