Merge pull request #3597 from crate/crate-2.1.8

updated CrateDB to 2.1.8

library/crate

@@ -9,8 +9,8 @@ Maintainers: Bernd Dorn <[email protected]> (@dobe),
              Mika Naylor <[email protected]> (@autophagy)
 GitRepo: https://github.com/crate/docker-crate.git
 
-Tags: 2.1.7, 2.1, latest
-GitCommit: 1c775563b01e830f265f0210ce8a68c81903c8cc
+Tags: 2.1.8, 2.1, latest
+GitCommit: 49b66b0f14f1285a3165fc6937ac72b165af7990
 
 Tags: 2.0.7, 2.0
 GitCommit: 79d51bb263104ccd2d3c57a5d74c16d6f0466d21