Update dependency xUnit.v3 to v3 (#261)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

test/Soenneker.Extensions.Long.Tests/Soenneker.Extensions.Long.Tests.csproj

@@ -15,7 +15,7 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="xUnit.v3" Version="2.0.3" />
+        <PackageReference Include="xUnit.v3" Version="3.0.0" />
     </ItemGroup>
 
     <ItemGroup>