Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/ab2ef2c: Update 5.1 to 5.1.12, baseline 5.1.8, patch 12

library/bash

@@ -8,9 +8,9 @@ Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: 1b2473e17a1037200e287c27098426f00f322f99
 Directory: devel
 
-Tags: 5.1.8, 5.1, 5, latest, 5.1.8-alpine3.14, 5.1-alpine3.14, 5-alpine3.14, alpine3.14
+Tags: 5.1.12, 5.1, 5, latest, 5.1.12-alpine3.14, 5.1-alpine3.14, 5-alpine3.14, alpine3.14
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 83941cc446c3e1789afaf1c849e445ddf9687a06
+GitCommit: ab2ef2c2f41a368260868fe06f1faf2e27bc3240
 Directory: 5.1
 
 Tags: 5.0.18, 5.0, 5.0.18-alpine3.14, 5.0-alpine3.14