chore(deps): Bump MailKit from 4.1.0 to 4.2.0 (#1493)

Bumps [MailKit](https://github.com/jstedfast/MailKit) from 4.1.0 to 4.2.0.
- [Changelog](https://github.com/jstedfast/MailKit/blob/master/ReleaseNotes.md)
- [Commits](https://github.com/jstedfast/MailKit/compare/4.1.0...4.2.0)

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

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

Projects/UOContent/UOContent.csproj

@@ -31,7 +31,7 @@
         <ProjectReference Include="..\Server\Server.csproj" Private="false" PrivateAssets="All" IncludeAssets="None">
             <IncludeInPackage>false</IncludeInPackage>
         </ProjectReference>
-        <PackageReference Include="MailKit" Version="4.1.0" />
+        <PackageReference Include="MailKit" Version="4.2.0" />
         <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" Version="7.0.0" />
         <PackageReference Include="Microsoft.Toolkit.HighPerformance" Version="7.1.2" />
         <PackageReference Include="Zlib.Bindings" Version="1.11.0" />