Bump Realm from 12.3.0 to 20.1.0

Bumps [Realm](https://github.com/realm/realm-dotnet) from 12.3.0 to 20.1.0.
- [Release notes](https://github.com/realm/realm-dotnet/releases)
- [Changelog](https://github.com/realm/realm-dotnet/blob/20.1.0/CHANGELOG.md)
- [Commits](realm/realm-dotnet@12.3.0...20.1.0)

---
updated-dependencies:
- dependency-name: Realm
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Refresh.GameServer/Refresh.GameServer.csproj

@@ -70,7 +70,7 @@
       <PackageReference Include="MailKit" Version="4.8.0" />
       <PackageReference Include="NPTicket" Version="3.1.0" />
       <PackageReference Include="Pfim" Version="0.11.3" />
-      <PackageReference Include="Realm" Version="12.3.0" />
+      <PackageReference Include="Realm" Version="20.1.0" />
       <PackageReference Include="SharpZipLib" Version="1.4.2" />
       <PackageReference Include="SixLabors.ImageSharp" Version="3.1.5" />
       <PackageReference Include="EasyHotReload" Version="1.0.0" />