Bump Verify.Xunit from 16.5.4 to 16.7.0

Bumps [Verify.Xunit](https://github.com/VerifyTests/Verify) from 16.5.4 to 16.7.0.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits/16.7.0)

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

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

Author: dependabot[bot]

test/Microsoft.OpenApi.Tests/Microsoft.OpenApi.Tests.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="SharpYaml" Version="1.9.0" />
     <PackageReference Include="Verify" Version="16.7.0" />
-    <PackageReference Include="Verify.Xunit" Version="16.5.4" />
+    <PackageReference Include="Verify.Xunit" Version="16.7.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <PrivateAssets>all</PrivateAssets>