fix(cassandra-stress): bump c-s version to 3.17.0

Main reason for version change:

Using cassandra-stress 3.17 to mittigate
- Switch to ReplicaOrdering.RANDOM for select LBPs
  [32](scylladb/cassandra-stress#32)

Other Noticable Changes since the last version used in SCT:

- Add support for hostname verification
  [31](scylladb/cassandra-stress#31)
- Print thread dump on specific signals
  [27](scylladb/cassandra-stress#27)
- Replace uninterruptible wait
  [26](scylladb/cassandra-stress#26)
- Make it use DCAwareRoundRobinPolicy unless rack is provided
  [21](scylladb/cassandra-stress#21)
- feature(docker): adding support for dependabot
  [19](scylladb/cassandra-stress#19)

Signed-off-by: Dusan Malusev <dusan.malusev@scylladb.com>
(cherry picked from commit 02997a6)

defaults/docker_images/cassandra-stress/values_cassandra-stress.yaml

@@ -1,2 +1,2 @@
 cassandra-stress:
-  image: 'scylladb/cassandra-stress:3.13.0'
+  image: 'scylladb/cassandra-stress:3.17.0'