Changes:
* Private constructor for case class means private apply in Scala 3
* Logger class with Any instead of wildcard where needed
* Explicit import of internal implicit conversion import SinkToCompletionStage
* Hopefully source and binary compatible Scala 3 signature for GraphApply.create methods
* ZipLatestWith leaking private type
* Auto apply-to-lambda made explicit
* Internal async callback event class covariant
* Hub leaking private type
* Remove cycles in stream Buffer classes
* Avoid cyclic import in ResizableMultiReaderRingBuffer
* Safe cast of Subscribers
* Explicit import of internal implicit conversion SourceToCompletionStage
* Ambigous field name and method
* recover delegates using PF from javadsl not inferred, made explicit
* TcpStage completing promise with wrong type
* Collect aggregator empty value cannot be underscore with type ascription
* Some type alias shenanigans in QueueSink removed
* Explicit type on effectiveMaximumBurst in Throttle
* Override method return type not inferred in GraphInterpreter
* MutableCollectorState.accumulated getter got wrong type somehow
* TLS actor fallback case only applicable to null
* Some internal unchecked pattern matching removed
* Ok that createGraph is not present in Java API
* Separate impl per language for implicit actor system apply
* Move more release instructions to the template
Sparked by discussion in #17432
* use newer version in example
Co-authored-by: Renato Cavalcanti <renato@cavalcanti.be>
* point to sonatype for snapshots
Co-authored-by: Renato Cavalcanti <renato@cavalcanti.be>
* Remove @switch when it doesn't take effect
* Use ActorRef.noSender
* Minor tweaks to SchedulerSpec
* Disambiguate TypedActor for Scala 3
* Bump ScalaTest to a version compatible with Scala 3
* Bump ScalaCheck
* Disambiguate Event in SupervisorHierarchySpec
* Scala 3 compatible EventBusSpec
* Prevent private unused variables to be erased by Scala 3
* Bump mockito
* Explicit actorRef2Scala import
* restore original .scalafix.conf
* Scala 3 compatible tailrec
* Reminder to re add switch annotation in case
* Move to nowarn instead of silencer
* Bump to Scala 2.12.13
* Cross compatible annotations
* fix docs generation
* adapt the build for Scala 3
* fix errors but bus
* remove more SerialVersion from trait
* scalacheck only from scalatest
* cross-compile akka-actor-tests
* restore cross-compilation
* early initializers workaround
* scalacheck switch
* cross compatible FSM.State class
* cross compatible LARS spec
* Change results to pass LineNumberSpec
* fix stackoverflow in AsyncDnsResolverIntegrationSpec
* FSM.State unapply
* fix Scala 2.13 mima
* SerialVersionRemover compiler plugin
* removed unused nowarns
