Update hello-world

Changes:

- https://github.com/docker-library/hello-world/commit/e6a1422: Merge pull request https://github.com/docker-library/hello-world/pull/67 from infosiftr/musl
- https://github.com/docker-library/hello-world/commit/7ecae69: Convert from glibc-based binaries to musl-based binaries

library/hello-world

@@ -8,19 +8,19 @@ GitCommit: 837f63a4a9cc1e06320f47abb98965b6c5672b30
 Tags: linux
 SharedTags: latest
 Architectures: amd64, arm32v5, arm32v7, arm64v8, i386, ppc64le, s390x
-amd64-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+amd64-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 amd64-Directory: amd64/hello-world
-arm32v5-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+arm32v5-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 arm32v5-Directory: arm32v5/hello-world
-arm32v7-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+arm32v7-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 arm32v7-Directory: arm32v7/hello-world
-arm64v8-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+arm64v8-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 arm64v8-Directory: arm64v8/hello-world
-i386-GitCommit: f7fe37d6506b67d1e650e0bbcc5d608e101e3bb7
+i386-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 i386-Directory: i386/hello-world
-ppc64le-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+ppc64le-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 ppc64le-Directory: ppc64le/hello-world
-s390x-GitCommit: b715c35271f1d18832480bde75fe17b93db26414
+s390x-GitCommit: 7ecae6978055d2fb6960e2a29d24a2af612e2716
 s390x-Directory: s390x/hello-world
 
 Tags: nanoserver-1809