fix(mojaloop/#2654): intermittent failures in gp tests for 13.1.0 release candidate

[mdebarros]

Fix for mojaloop/project/issues/2654:

• added retry logic to several test-cases within the CGS settlements test scenarios to improve consistency
• added the following environment variables which are only used by the following test collection: collections/hub/golden_path/settlement_cgs/newsetcgs.json
  • RETRY_MAX_ATTEMPTS (default: 10): This is the number of attempts that should be retried, this is currently used when validating the settlement/position accounts after the settlement is completed in the above test collection
  • RETRY_MAX_WAIT_IN_MS (default: 200): This is the wait time before retry attempts in milliseconds.