Avoiding running tests for changed referrer header behaviour on firefox

Add missing target to Rakefile

Amend java release targets

Adding support for CDP version 87 in .NET

[py] Bump version to 4a6

Updating .NET tests

[java] Switching default client implementation from okhttp to netty

Adjusting Rakefile for next release

Prevent chromium driver info from being considered a class that be ne…

…wed up

Updating Java changelog