Bump Verify from 28.3.2 to 28.4.0 in /src (#819)

Author: dependabot[bot]

src/Directory.Packages.props

@@ -20,7 +20,7 @@
     <PackageVersion Include="Polyfill" Version="7.5.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.144" />
     <PackageVersion Include="System.Data.SqlClient" Version="4.9.0" />
-    <PackageVersion Include="Verify" Version="28.3.2" />
+    <PackageVersion Include="Verify" Version="28.4.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.NUnit" Version="28.3.2" />
     <PackageVersion Include="Verify.SqlServer" Version="10.1.0" />