Bump xunit.v3.mtp-v2 from 3.2.0 to 3.2.1

---
updated-dependencies:
- dependency-name: xunit.v3.mtp-v2
  dependency-version: 3.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

MaxMind.Db.Test/MaxMind.Db.Test.csproj

@@ -37,7 +37,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
-    <PackageReference Include="xunit.v3.mtp-v2" Version="3.2.0" />
+    <PackageReference Include="xunit.v3.mtp-v2" Version="3.2.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>