chore(deps): Bump NSubstitute

Bumps NSubstitute from 5.0.0 to 5.1.0.

---
updated-dependencies:
- dependency-name: NSubstitute
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/@jsii/Directory.Build.targets

@@ -11,7 +11,7 @@
     <PackageReference Update="Microsoft.CodeQuality.Analyzers" Version="3.3.2" />
 
     <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
-    <PackageReference Update="NSubstitute" Version="5.0.0" />
+    <PackageReference Update="NSubstitute" Version="5.1.0" />
     <PackageReference Update="xunit" Version="2.5.0" />
     <PackageReference Update="xunit.runner.visualstudio" Version="2.5.0" />
     <PackageReference Update="XunitXml.TestLogger" Version="3.1.11" />