tests: Ready condition rename for elasticache-controller

[gustavodiaz7722]

This PR updates test files to the Ready condition:

• Replace ACK.ResourceSynced → Ready
• Replace assert_synced → assert_ready
• Replace assert_not_synced → assert_not_ready

Generated by helper script.

[ack-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: gustavodiaz7722
Once this PR has been reviewed and has the lgtm label, please assign jlbutler for approval by writing /assign @jlbutler in a comment. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ack-prow]

@gustavodiaz7722: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
elasticache-verify-attribution	bd770e2	link	false	/test elasticache-verify-attribution
elasticache-kind-e2e	bd770e2	link	true	/test elasticache-kind-e2e

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.