Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/858c840: Update 5.2-rc to 5.2-rc2

library/bash

@@ -8,9 +8,9 @@ Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: d57aaaf6316de6d0d3a2f8e3be49970131cb34bd
 Directory: devel
 
-Tags: 5.2-rc1, 5.2-rc, rc, 5.2-rc1-alpine3.15, 5.2-rc-alpine3.15, rc-alpine3.15
+Tags: 5.2-rc2, 5.2-rc, rc, 5.2-rc2-alpine3.15, 5.2-rc-alpine3.15, rc-alpine3.15
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: f2db3313c260ae88c2e9895f76ffce2bc869f41e
+GitCommit: 858c840b4a7bcbc7a80c5e36c2c0e6a021319421
 Directory: 5.2-rc
 
 Tags: 5.1.16, 5.1, 5, latest, 5.1.16-alpine3.15, 5.1-alpine3.15, 5-alpine3.15, alpine3.15