Update cassandra

Changes:

- https://github.com/docker-library/cassandra/commit/ac4975f: Update 4.0 to 4.0.3

library/cassandra

@@ -4,9 +4,9 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/cassandra.git
 
-Tags: 4.0.2, 4.0, 4, latest
+Tags: 4.0.3, 4.0, 4, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le
-GitCommit: d9ed9b41dd291528f942c5c4a7a75df0c37a6e8c
+GitCommit: ac4975fcd60b47291ca4772d8cce8047f10674b4
 Directory: 4.0
 
 Tags: 3.11.12, 3.11, 3