Update docker

Changes:

- https://github.com/docker-library/docker/commit/d60bf35: Update 20.10 to 20.10.4

library/docker

@@ -4,22 +4,22 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/docker.git
 
-Tags: 20.10.3, 20.10, 20, latest
+Tags: 20.10.4, 20.10, 20, latest
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: ec5d64f9611da8f8b19c9c5c4acc04b9397174e6
+GitCommit: d60bf352d0e0e0e9783984138dcac2508b3a281f
 Directory: 20.10
 
-Tags: 20.10.3-dind, 20.10-dind, 20-dind, dind
+Tags: 20.10.4-dind, 20.10-dind, 20-dind, dind
 Architectures: amd64, arm32v6, arm32v7, arm64v8
 GitCommit: 094faa88f437cafef7aeb0cc36e75b59046cc4b9
 Directory: 20.10/dind
 
-Tags: 20.10.3-dind-rootless, 20.10-dind-rootless, 20-dind-rootless, dind-rootless
+Tags: 20.10.4-dind-rootless, 20.10-dind-rootless, 20-dind-rootless, dind-rootless
 Architectures: amd64
-GitCommit: ec5d64f9611da8f8b19c9c5c4acc04b9397174e6
+GitCommit: d60bf352d0e0e0e9783984138dcac2508b3a281f
 Directory: 20.10/dind-rootless
 
-Tags: 20.10.3-git, 20.10-git, 20-git, git
+Tags: 20.10.4-git, 20.10-git, 20-git, git
 Architectures: amd64, arm32v6, arm32v7, arm64v8
 GitCommit: 387e351394bfad74bceebf8303c6c8e39c3d4ed4
 Directory: 20.10/git