Update docker

Changes:

- https://github.com/docker-library/docker/commit/3561756: Merge pull request https://github.com/docker-library/docker/pull/213 from oakwhiz/patch-1
- https://github.com/docker-library/docker/commit/4d5e4e2: Apply update.sh
- https://github.com/docker-library/docker/commit/be0caca: Change 4196-bit key size to 4096 bits

library/docker

@@ -11,7 +11,7 @@ Directory: 19.03
 
 Tags: 19.03.5-dind, 19.03-dind, 19-dind, stable-dind, test-dind, dind
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 92d278e671f32a9ee4a3c0668e46a41f4a3b74b0
+GitCommit: 4d5e4e2fcd2c5279a747e9ac221fb2442da53dec
 Directory: 19.03/dind
 
 Tags: 19.03.5-dind-rootless, 19.03-dind-rootless, 19-dind-rootless, stable-dind-rootless, test-dind-rootless, dind-rootless