Update dependency SonarAnalyzer.CSharp to v9.21.0.86780

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
SonarAnalyzer.CSharp (source)	9.20.0.85982 -> 9.21.0.86780

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Release Notes

SonarSource/sonar-dotnet (SonarAnalyzer.CSharp)

v9.21.0.86780: 9.21

Compare Source

New Rules

• 8771 - [C#] New rule S6678: Use PascalCase for named placeholders
• 8770 - [C#] New rule S6674: Log message template should be syntactically correct
• 8768 - [C#] New rule S2629: Logging templates should be constant
• 8767 - [C#] New rule S6677: Named placeholders should be unique
• 8766 - [C#] New rule S6667: Exceptions should be passed as an argument when logging in a catch clause
• 8765 - [C#] New rule S6668: Logging arguments should be passed to the correct parameter

Improvements

• The following rules were promoted to the SonarWay profile: S127, S1244, S1696, S1192, S1994, S2701, S2955

Bug Fixes

• 8787 - [C#] Fix AD0001: SonarAnalyzer.Rules.CSharp.SymbolicExecutionRunner throws an exception on unknown Numeric Constraints

False Positive

• 8823 - [C#] Fix S2701 FP: avoid raising for xUnit Assert.True()
• 6772 - [C#] Fix S4507 FP: Error raised on .NET 7 although the debug feature is deactivated

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