Update RELEASE_NOTES.md for 1.5.19 release

[Arkatufus]

1.5.19 April 15th 2024

Akka.NET v1.5.19 is a patch release for Akka.NET with a few bug fixes.

• Persistence.SQLite: Bump Microsoft.Data.SQLite to 8.0.4
• Core: Bump Google.Protobuf to 3.26.1
• Core: Bump Akka.Analyzer to 0.2.4
• Remote: Improve logging
• Cluster: Improve logging
• Core: Fix resource contention problem with HashedWheelTimerScheduler during start-up
• TestKit: Fix async deadlock by replacing IAsyncQueue with System.Threading.Channel

Akka.Analyzers

We've added 3 new analyzer rules to Akka.Analyzers:

• AK1004

  AK1004 warns users to replace any ScheduleTellOnce() and ScheduleTellRepeatedly() invocation inside an actor to implement IWithTimers interface instead. Documentation can be read here

• AK1005

  AK1005 warns users about improper Sender and Self access from inside an async lambda callbacks inside actor implementation. Documentation can be read here

• AK1007

  AK1007 is an error message for any Timers.StartSingleTimer() and Timers.StartPeriodicTimer() invocation from inside the actor PreRestart() and AroundPreRestart() lifecycle callback methods. Documentation can be read here

COMMITS	LOC+	LOC-	AUTHOR
9	366	1951	Aaron Stannard
9	14	14	dependabot[bot]
2	516	30	Gregorius Soedharmo

You can see the full set of changes for Akka.NET v1.5.19 here.

[Aaronontheweb]

LGTM