Bump Verify from 28.7.0 to 28.8.1 in /src

Bumps [Verify](https://github.com/VerifyTests/Verify) from 28.7.0 to 28.8.1.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits)

---
updated-dependencies:
- dependency-name: Verify
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Directory.Packages.props

@@ -11,9 +11,9 @@
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.147" />
     <PackageVersion Include="SixLabors.ImageSharp" Version="3.1.6" />
-    <PackageVersion Include="Verify" Version="28.7.0" />
+    <PackageVersion Include="Verify" Version="28.8.1" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.ImageMagick" Version="3.6.0" />
-    <PackageVersion Include="Verify.NUnit" Version="28.6.1" />
+    <PackageVersion Include="Verify.NUnit" Version="28.8.0" />
   </ItemGroup>
 </Project>