Bump NUnit from 3.14.0 to 4.2.2 in /eFormAPI/Plugins/ItemsPlanning.Pn

Bumps [NUnit](https://github.com/nunit/nunit) from 3.14.0 to 4.2.2.
- [Release notes](https://github.com/nunit/nunit/releases)
- [Changelog](https://github.com/nunit/nunit/blob/main/CHANGES.md)
- [Commits](nunit/nunit@v3.14.0...4.2.2)

---
updated-dependencies:
- dependency-name: NUnit
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

eFormAPI/Plugins/ItemsPlanning.Pn/ItemsPlanning.Pn.Test/ItemsPlanning.Pn.Test.csproj

@@ -8,7 +8,7 @@
 
     <ItemGroup>
       <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-      <PackageReference Include="NUnit" Version="3.14.0" />
+      <PackageReference Include="NUnit" Version="4.2.2" />
       <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     </ItemGroup>