UNT0039 - Ignore generic types

[amedinae]

Fixes #445

Checklist

• I have read the Contribution Guide ;
• There is an approved issue describing the change when contributing a new analyzer or suppressor ;
• I have added tests that prove my fix is effective or that my feature works ;
• I have added necessary documentation (if appropriate) ;

Short description of what this resolves:

This PR fixes a false positive in UNT0039 where the analyzer incorrectly flagged GetComponent() calls when T was a generic type parameter. Since C# attributes (like [RequireComponent]) cannot accept generic type parameters as arguments, adhering to the analyzer's suggestion was impossible in these cases.

Changes proposed in this pull request:

• Updated RequireComponentAnalyzer.AnalyzeInvocation to check the TypeKind of the component type.
• The analyzer now returns early (ignoring the diagnostic) if the component type is a TypeParameter, preventing false positives on generic methods.
• Added a new test case GenericTypeParameter to RequireComponentTests.cs to verify that generic GetComponent calls are correctly ignored.

[amedinae]

@microsoft-github-policy-service agree

[sailro]

Thank you very much for this contribution !