alpine: bump 3.14.3 for security fixes in busybox

Fixes various CVE's in busybox:

- CVE-2021-42374
- CVE-2021-42375
- CVE-2021-42378
- CVE-2021-42379
- CVE-2021-42380
- CVE-2021-42381
- CVE-2021-42382
- CVE-2021-42383
- CVE-2021-42384
- CVE-2021-42385
- CVE-2021-42386

https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/

Note that CVE-2021-42373, CVE-2021-42376 and CVE-2021-42377 does not
affect alpine.

library/alpine

@@ -14,10 +14,10 @@ s390x-Directory: s390x/
 i386-Directory: x86/
 amd64-Directory: x86_64/
 
-Tags: 3.14.2, 3.14, 3, latest
+Tags: 3.14.3, 3.14, 3, latest
 Architectures: arm64v8, arm32v6, arm32v7, ppc64le, s390x, i386, amd64
 GitFetch: refs/heads/v3.14
-GitCommit: 6046c206b93945695d9c3efedcafe629a327fd85
+GitCommit: b88b69a4da55c759a174176b9e8d1da8697fd709
 arm64v8-Directory: aarch64/
 arm32v6-Directory: armhf/
 arm32v7-Directory: armv7/