Update dependency Soenneker.Tests.FixturedUnit to 4.0.2031 (#327)

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

Author: renovate[bot]

test/Soenneker.Excel.Util.Tests/Soenneker.Excel.Util.Tests.csproj

@@ -25,7 +25,7 @@
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
         <PackageReference Include="Soenneker.Utils.Test" Version="4.0.295" />
-        <PackageReference Include="Soenneker.Tests.FixturedUnit" Version="4.0.2030" />
+        <PackageReference Include="Soenneker.Tests.FixturedUnit" Version="4.0.2031" />
         <PackageReference Include="xUnit.v3" Version="3.2.0" />
     </ItemGroup>