Bump Reqnroll.xUnit from 2.4.1 to 3.0.0

---
updated-dependencies:
- dependency-name: Reqnroll.xUnit
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

test/NHSNumberValidator.Test/NHSNumberValidator.Test.csproj

@@ -9,7 +9,7 @@
     <ItemGroup>
         <PackageReference Include="JUnitTestLogger" Version="1.1.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-        <PackageReference Include="Reqnroll.xUnit" Version="2.4.1" />
+        <PackageReference Include="Reqnroll.xUnit" Version="3.0.0" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4">
             <PrivateAssets>all</PrivateAssets>