Bump NUnit.ConsoleRunner from 3.21.0 to 3.21.1 (#3605)

---
updated-dependencies:
- dependency-name: NUnit.ConsoleRunner
  dependency-version: 3.21.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

lang/csharp/versions.props

@@ -69,7 +69,7 @@
     <MicrosoftCodeAnalysisNetAnalyzersVersion>10.0.100</MicrosoftCodeAnalysisNetAnalyzersVersion>
     <MicrosoftNETTestSdkVersion>17.13.0</MicrosoftNETTestSdkVersion>
     <NUnitVersion>3.14.0</NUnitVersion>
-    <NUnitConsoleRunnerVersion>3.21.0</NUnitConsoleRunnerVersion>
+    <NUnitConsoleRunnerVersion>3.21.1</NUnitConsoleRunnerVersion>
     <NUnit3TestAdapterVersion>5.2.0</NUnit3TestAdapterVersion>
     <StyleCopAnalyzersVersion>1.1.118</StyleCopAnalyzersVersion>
   </PropertyGroup>