Update docker

Changes:

- https://github.com/docker-library/docker/commit/27f587c: Update 18.09-rc to Alpine 3.10 too
- https://github.com/docker-library/docker/commit/7a83331: Merge pull request https://github.com/docker-library/docker/pull/161 from J0WI/alpine10

library/docker

@@ -6,7 +6,7 @@ GitRepo: https://github.com/docker-library/docker.git
 
 Tags: 19.03.0-rc3, 19.03-rc, rc, test
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: e2e4d748617160f82dd4a98e5a643f4453152d95
+GitCommit: cdcff675cecbae122cbae49ed6e17fa78bb6116a
 Directory: 19.03-rc
 
 Tags: 19.03.0-rc3-dind, 19.03-rc-dind, rc-dind, test-dind
@@ -21,7 +21,7 @@ Directory: 19.03-rc/git
 
 Tags: 18.09.7-rc1, 18.09-rc
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 30147db7aaadbc1017c30e6a03761e83bf71c6e7
+GitCommit: 27f587ca757da9522c599db55dfdb46ee291dd1b
 Directory: 18.09-rc
 
 Tags: 18.09.7-rc1-dind, 18.09-rc-dind
@@ -36,7 +36,7 @@ Directory: 18.09-rc/git
 
 Tags: 18.09.6, 18.09, 18, stable, latest
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 6001c15038b05149a83dcc17e1bbeedc92979f6d
+GitCommit: cdcff675cecbae122cbae49ed6e17fa78bb6116a
 Directory: 18.09
 
 Tags: 18.09.6-dind, 18.09-dind, 18-dind, stable-dind, dind