Merge pull request #3488 from crate/update-2.1.7

Update CrateDB 2.1.7 docker image with better defaults

library/crate

@@ -10,7 +10,7 @@ Maintainers: Bernd Dorn <[email protected]> (@dobe),
 GitRepo: https://github.com/crate/docker-crate.git
 
 Tags: 2.1.7, 2.1, latest
-GitCommit: 21b3ccb1b09845558fefc3a822132ecb1c8161e6
+GitCommit: 1c775563b01e830f265f0210ce8a68c81903c8cc
 
 Tags: 2.0.7, 2.0
 GitCommit: 79d51bb263104ccd2d3c57a5d74c16d6f0466d21