Bump Verify.Xunit from 28.9.0 to 31.0.2 (#172)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

test/Directory.Build.props

@@ -17,7 +17,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' != 'net6.0'">
-    <PackageReference Include="Verify.Xunit" Version="28.9.0" />
+    <PackageReference Include="Verify.Xunit" Version="31.0.2" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(GITHUB_ACTIONS)' == 'true'">