[Haskell-cafe] ANN: stack-2.1 second release candidate

[Emanuel Borsboom]

Announcing the second release candidate for Stack 2.1!  This is the
version that will be released one week from now if there aren't any
major issues discovered, so please give it a try.

You can download bindists for Linux, macOS, and Windows from
https://github.com/commercialhaskell/stack/releases/tag/v2.1.0.3

**Changes since v2.1.0.1**

Other enhancements:

* Add `--docker-mount-mode` option to set the Docker volume mount mode
  for performance tuning on macOS.

Bug fixes:

* Fix regression where `stack --docker` would quit after 20 seconds on
  macOS.