Merge branch 'release-0.28.0' of github.com:metabase/metabase-init into release-0.28.0

bin/version

 #!/usr/bin/env bash
 
-VERSION="v0.28.0"
+VERSION="v0.28.0-RC"
 
 # dynamically pull more interesting stuff from latest git commit
 HASH=$(git show-ref --head --hash=7 head)            # first 7 letters of hash should be enough; that's what GitHub uses