Bump NSubstitute from 5.0.0 to 5.1.0 in /GitHubIssueFormsParser

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>

Author: dependabot[bot]

GitHubIssueFormsParser/Directory.Build.props

@@ -72,7 +72,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="NSubstitute" Version="5.0.0" />
+    <PackageReference Include="NSubstitute" Version="5.1.0" />
     <PackageReference Include="Shouldly" Version="4.2.1" />
     <PackageReference Include="xunit.analyzers" Version="1.2.0" />
     <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.16" />