OTel ActorContextDecorator should support all ReenterAfter overloads

[kasperhhk]

Description

Currently only 2 of the 5 overloads for ReenterAfter is supported by the OpenTelemetryActorContextDecorator. This causes telemetry to be lost when using the unsupported variants.

We encountered problems with our system where we had to manually re-set the Baggage, because we called one of the unsupported ReenterAfter overloads. With this fix it should mean we don't have to do this anymore.

I have added tests that cover each of the overloads (expectedly 3 out of 5 failed before the fix).

Suggestions for naming and improvements to the tests are welcome, I just made the simplest tests i could think of to test the problem.

However since I am making changes to the ActorContextDecorator base class, it may have implications for all other decorators. It might be necessary to take a look and see if those need updating to make sure they implement the missing overloads too.

Purpose

This pull request is a:

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[CLAassistant]

All committers have signed the CLA.