v4.0.0

What's Changed

• Added .NET 6 support by @skwasjer in #14
• (breaking) Dropped .NET 5.0 support (non-LTS)
• (breaking) Removed .NET Framework 4.6 and .NET Standard below 2.0.
• (breaking) Removed CorrelationManager obsoleted constructors.
• (breaking) Removed obsolete CorrelateRequests overload accepting an IConfiguration parameter.

Full Changelog: v3.3...v4.0.0