Provide RD version for Rider plugin

[Domonion]

Description

CSharpModel is generated from utbot-rd project, which uses version of rd from IDEA plugin. Generated models are provided to the Rider plugin at utbot-rider project, which uses RD version from the Jetbrains.Rider.SDK NuGet package.

This creates implicit dependency between Rider and IDEA plugins.

Actual behavior

If you bump rdVersion and regenerate models - Rider plugin will stop working as it is still uses RD from Jetbrains.Rider.SDK` and generated code requires different RD version.

Expected behavior

Changing rdVersion in gradle.properties should be:

1. Inflicted in UtBot.RD.csproj - for example with separate MSBuild properties file
2. Verified that are compatible with updated Jetbrains.Rider.SDK