Bump Verify.Xunit from 29.2.0 to 30.7.3

---
updated-dependencies:
- dependency-name: Verify.Xunit
  dependency-version: 30.7.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/BenchmarkDotNetVisualizer.Tests/BenchmarkDotNetVisualizer.Tests.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" PrivateAssets="All" />
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageReference Include="Verify.Xunit" Version="29.2.0" />
+    <PackageReference Include="Verify.Xunit" Version="30.7.3" />
   </ItemGroup>
 
   <ItemGroup>