Bump Reqnroll.xUnit from 1.0.1 to 2.0.3

Bumps [Reqnroll.xUnit](https://github.com/reqnroll/Reqnroll) from 1.0.1 to 2.0.3.
- [Changelog](https://github.com/reqnroll/Reqnroll/blob/main/CHANGELOG.md)
- [Commits](reqnroll/Reqnroll@v1.0.1...v2.0.3)

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

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

test/NHSNumberGenerator.Test/NHSNumberGenerator.Test.csproj

@@ -10,7 +10,7 @@
         <PackageReference Include="JunitXml.TestLogger" Version="3.1.12" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
         <PackageReference Include="NHSNumberValidator" Version="2.0.1.2" />
-        <PackageReference Include="Reqnroll.xUnit" Version="1.0.1" />
+        <PackageReference Include="Reqnroll.xUnit" Version="2.0.3" />
         <PackageReference Include="Shouldly" Version="4.2.1" />
         <PackageReference Include="xunit" Version="2.8.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.5.8">