shells/ammonite: Update to 2.1.4
From ChangeLog (https://ammonite.io/#2.1.4):
- Handle SIGINT When Reading User Input
- rebootstrap mill
- Ensure -Ymacro-annotations works fine
- Fix 2.12.1 compilation
- several fixes and support for Coursier and BSP
- switch to Scala 2.13 ammonite version for the port
PR: 246522
Submitted by: reebsd-ports@jan0sch.de (maintainer)