Bump Verify and Verify.XunitV3 in /src

Bumps [Verify](https://github.com/VerifyTests/Verify) and [Verify.XunitV3](https://github.com/VerifyTests/Verify). These dependencies needed to be updated together.

Updates `Verify` from 28.8.1 to 28.9.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits/28.9.0)

Updates `Verify.XunitV3` from 28.8.1 to 28.9.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits/28.9.0)

---
updated-dependencies:
- dependency-name: Verify
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: Verify.XunitV3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -9,9 +9,9 @@
     <PackageVersion Include="Polyfill" Version="7.12.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.147" />
     <PackageVersion Include="System.Text.Json" Version="9.0.0" />
-    <PackageVersion Include="Verify" Version="28.8.1" />
+    <PackageVersion Include="Verify" Version="28.9.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.XunitV3" Version="28.8.1" />
+    <PackageVersion Include="Verify.XunitV3" Version="28.9.0" />
     <PackageVersion Include="xunit.v3" Version="1.0.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.1" />
   </ItemGroup>