Setup automated tests with two replicas of cps-and-ncmp

- this change for two test suits: CSIT and K6
- increase cps-and-ncmp replicas to 2
- introduce nginx as load-balancer
- set proxies inside nginx for the cps-and-ncmp URI paths
- upgrade hazelcast-spring to 5.3.7

Issue-ID: CPS-2038

Change-Id: If1b6c1e1218af16b24cc061507ea9b25d277d143
Signed-off-by: halil.cakal <halil.cakal@est.tech>
6 files changed