Update cassandra

Changes:

- https://github.com/docker-library/cassandra/commit/fbd1b4c: Merge pull request https://github.com/docker-library/cassandra/pull/229 from infosiftr/arbitrary-user
- https://github.com/docker-library/cassandra/commit/03bef93: Fix arbitrary user support

library/cassandra

@@ -6,25 +6,25 @@ GitRepo: https://github.com/docker-library/cassandra.git
 
 Tags: 4.0-beta4, 4.0
 Architectures: amd64, arm32v7, arm64v8, ppc64le
-GitCommit: 51b30b5d78616d8db73153dede5df440d0ea7fc4
+GitCommit: 03bef93db2ff4b5a3cbc954618f08c44ddcb7568
 Directory: 4.0
 
 Tags: 3.11.10, 3.11, 3, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le
-GitCommit: 51b30b5d78616d8db73153dede5df440d0ea7fc4
+GitCommit: 03bef93db2ff4b5a3cbc954618f08c44ddcb7568
 Directory: 3.11
 
 Tags: 3.0.24, 3.0
 Architectures: amd64, arm32v7, arm64v8, ppc64le
-GitCommit: 51b30b5d78616d8db73153dede5df440d0ea7fc4
+GitCommit: 03bef93db2ff4b5a3cbc954618f08c44ddcb7568
 Directory: 3.0
 
 Tags: 2.2.19, 2.2, 2
 Architectures: amd64, arm32v7, ppc64le
-GitCommit: 51b30b5d78616d8db73153dede5df440d0ea7fc4
+GitCommit: 03bef93db2ff4b5a3cbc954618f08c44ddcb7568
 Directory: 2.2
 
 Tags: 2.1.22, 2.1
 Architectures: amd64, arm64v8, ppc64le
-GitCommit: 51b30b5d78616d8db73153dede5df440d0ea7fc4
+GitCommit: 03bef93db2ff4b5a3cbc954618f08c44ddcb7568
 Directory: 2.1