Bump Verify.XunitV3 from 28.6.1 to 28.7.0 in /src (#217)

Author: dependabot[bot]

src/Directory.Packages.props

@@ -11,7 +11,7 @@
     <PackageVersion Include="ProjectDefaults" Version="1.0.147" />
     <PackageVersion Include="Verify" Version="28.7.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.XunitV3" Version="28.6.1" />
+    <PackageVersion Include="Verify.XunitV3" Version="28.7.0" />
     <PackageVersion Include="xunit.v3" Version="1.0.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0" />
   </ItemGroup>