Update packageurl-dotnet to 2.0.0

[JamieMagee]

Bumps packageurl-dotnet from 2.0.0-rc.3 to 2.0.0. The stable release renamed the PackageUrl class to PackageURL, so this PR updates all references across the TypedComponent classes, docs, and tests to match.

[Copilot]

Pull request overview

Updates the repo to consume the stable packageurl-dotnet 2.0.0 release and aligns the contracts/tests/docs to the library’s PackageUrl → PackageURL type rename.

Changes:

• Bump packageurl-dotnet from 2.0.0-rc.3 to 2.0.0.
• Update TypedComponent.PackageUrl and all TypedComponent overrides to return PackageURL.
• Update Swift component unit tests and detector authoring docs to reference PackageURL.

Show a summary per file

File	Description
test/Microsoft.ComponentDetection.Detectors.Tests/SwiftComponentTests.cs	Updates expected PURL construction to use PackageURL in Swift tests.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/TypedComponent.cs	Changes the contract surface PackageUrl property type to PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/SwiftComponent.cs	Updates Swift TypedComponent to construct PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/VcpkgComponent.cs	Updates Vcpkg TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/RubyGemsComponent.cs	Updates RubyGems TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/PodComponent.cs	Updates Pod TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/PipComponent.cs	Updates Pip TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/NugetComponent.cs	Updates NuGet TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/NpmComponent.cs	Updates Npm TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/MavenComponent.cs	Updates Maven TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/LinuxComponent.cs	Updates Linux TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/GoComponent.cs	Updates Go TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/CppSdkComponent.cs	Updates CppSdk TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/ConanComponent.cs	Updates Conan TypedComponent to construct/return PackageURL.
src/Microsoft.ComponentDetection.Contracts/TypedComponent/CargoComponent.cs	Updates Cargo TypedComponent to construct/return PackageURL.
docs/creating-a-new-detector.md	Updates the sample TypedComponent to use PackageURL.
Directory.Packages.props	Bumps packageurl-dotnet package version to 2.0.0.

Copilot's findings

• Files reviewed: 17/17 changed files
• Comments generated: 1

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.0%. Comparing base (7ce401b) to head (74a34bd).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #1799   +/-   ##
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[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂