Bump Verify.Expecto from 20.6.0 to 20.7.0 in /src (#963)

Bumps [Verify.Expecto](https://github.com/VerifyTests/Verify) from 20.6.0 to 20.7.0.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](20.6.0...20.7.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/NugetUsage/ExpectoNugetUsage/ExpectoNugetUsage.fsproj

@@ -9,7 +9,7 @@
         <PackageReference Include="YoloDev.Expecto.TestSdk" Version="0.14.2" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
         <PackageReference Include="Expecto" Version="10.1.0" />
-        <PackageReference Include="Verify.Expecto" Version="20.6.0" />
+        <PackageReference Include="Verify.Expecto" Version="20.7.0" />
 <!-- end-snippet -->
     </ItemGroup>
 </Project>