Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/def1746: Update to commit 6edcd70089d71ee8c17bf3298527054b3223be9f
- https://github.com/tianon/docker-bash/commit/fa8d529: Update to commit bdf37a2d4f0f052ffd15d36de3b3a5d28f357000

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20200615, devel
+Tags: devel-20200622, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 4f0b1f90c31e844616b6da2641a00fd33b05879a
+GitCommit: def174657a53d9b3e93d02f9f1dd884d08ba52f4
 Directory: devel
 
 Tags: 5.1-alpha, 5.1-rc, rc