Akka gRPC 2.1.5

Changes

• Don't automatically update protobuf-java #1632 by @raboof
• No more switchVersion #1636 by @raboof
• use slash syntax instead of deprecated in #1633 by @xuwei-k
• Fork runnable subprojects #1621 by @raboof
• Publish codegen snapshots for Scala 2.13 #1599 by @raboof
• Publish codegen for Scala 2.13 #1598 by @raboof

Gradle

• Update dependencies to latest version. #1623 by @counter2015
• Sync gRPC versions between the Gradle plugin and the rest of the project. #1615 by @orendain
• Update protobuf-java to 3.20.1 #1611 by @scala-steward

Maven

• Update dependencies to latest version. #1623 by @counter2015
• Update protobuf-java to 3.20.1 #1611 by @scala-steward

sbt

• fix: allow messages with the same name from different packages #1643 by @jroper
• Update scala-library to 2.12.16 #1629 by @scala-steward
• Update dependencies to latest version. #1623 by @counter2015
• Update grpc-core, grpc-interop-testing, ... to 1.46.0 #1612 by @scala-steward
• Update grpc-core, grpc-interop-testing, ... to 1.45.1 #1601 by @scala-steward

Updates

• Update sbt, scripted-plugin to 1.7.1 #1637 by @scala-steward
• Update sbt, scripted-plugin to 1.7.0 #1635 by @scala-steward
• Update scala-library to 2.12.16 #1629 by @scala-steward
• Update maven-core, maven-plugin-api to 3.8.6 #1627 by @scala-steward
• Update org.eclipse.jgit to 5.13.1.202206130422-r #1628 by @scala-steward
• Update dependencies to latest version. #1623 by @counter2015
• Update paradox-theme-akka, ... to 0.44 #1619 by @scala-steward
• build: use +~ for cross-building #1516 by @jrudolph
• Update protobuf-java to 3.20.1 #1611 by @scala-steward
• Update grpc-core, grpc-interop-testing, ... to 1.46.0 #1612 by @scala-steward
• Update sbt-header to 5.7.0 #1610 by @scala-steward
• Update sbt-paradox-dependencies to 0.2.2 #1607 by @scala-steward
• Update sbt-mima-plugin to 1.1.0 #1606 by @scala-steward
• Update paradox-theme-akka, ... to 0.43 #1604 by @scala-steward
• Update grpc-core, grpc-interop-testing, ... to 1.45.1 #1601 by @scala-steward