Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/a2f55c4: Update devel to 20210112, commit a9cf0031ef2811bb7d94a0ddeda86fafb8e2e3e1
- https://github.com/tianon/docker-bash/commit/6ee1112: Update devel to 20210107, commit 63706353d7292e9e1a53420f181a4121073bde65

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20210104, devel
+Tags: devel-20210112, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: a607968c661e7062380c3cbd1092a0ab81c50ae3
+GitCommit: a2f55c40b5e12cbc064d8e04eb86214b0688fe38
 Directory: devel
 
 Tags: 5.1.4, 5.1, 5, latest