Update roslynator to 4.12.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Roslynator.Analyzers	4.12.8 -> 4.12.9
Roslynator.CodeAnalysis.Analyzers	4.12.8 -> 4.12.9
Roslynator.CodeFixes	4.12.8 -> 4.12.9
Roslynator.Formatting.Analyzers	4.12.8 -> 4.12.9
Roslynator.Refactorings	4.12.8 -> 4.12.9

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Release Notes

dotnet/roslynator (Roslynator.Analyzers)

v4.12.9

Fixed

• Fix analyzer RCS1090 (PR)
• Fix analyzer RCS1124 (PR)
• [CLI] Fix command generate-doc (PR, PR)

Changed

• Update analyzer RCS1077 (PR)
  • Do not suggest to change list.FirstOrDefault(predicate) to list.Find(predicate).
    Performance gain is negligible and actually FirstOrDefault can be even faster on .NET 9 (see related issue for more details).

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