Update verify to 28.8.0 (#1598)

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

Author: renovate[bot]

Directory.Packages.props

@@ -67,9 +67,9 @@
         <PackageVersion Include="Verify.FakeItEasy" Version="2.1.0" />
         <PackageVersion Include="Verify.Moq" Version="2.1.0" />
         <PackageVersion Include="Verify.NSubstitute" Version="2.1.0" />
-        <PackageVersion Include="Verify.TUnit" Version="28.7.1" />
-        <PackageVersion Include="Verify.XUnit" Version="28.7.1" />
-        <PackageVersion Include="Verify.XUnitV3" Version="28.7.1" />
+        <PackageVersion Include="Verify.TUnit" Version="28.8.0" />
+        <PackageVersion Include="Verify.XUnit" Version="28.8.0" />
+        <PackageVersion Include="Verify.XUnitV3" Version="28.8.0" />
         <PackageVersion Include="xunit" Version="2.9.2" />
         <PackageVersion Include="xunit.abstractions" Version="2.0.3" />
         <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0" />