Bump Verify.XunitV3 from 28.2.1 to 28.3.1 in /src (#323)

Author: dependabot[bot]

src/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="ProjectDefaults" Version="1.0.144" />
     <PackageVersion Include="Verify" Version="28.3.1" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.XunitV3" Version="28.3.0" />
+    <PackageVersion Include="Verify.XunitV3" Version="28.3.1" />
     <PackageVersion Include="WolverineFx" Version="3.2.0" />
     <PackageVersion Include="xunit.v3" Version="0.6.0-pre.7" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0-pre.49" />