[v25.3.x] rpk: support cluster-uuid-override when running WCR

[vbotbuildovich]

Backport of PR #29153

[vbotbuildovich]

Retry command for Build#78710

please wait until all jobs are finished before running the slash command

/ci-repeat 1
skip-redpanda-build
skip-units
skip-rebase
tests/rptest/transactions/consumer_offsets_test.py::VerifyConsumerOffsetsThruUpgrades.test_consumer_group_offsets@{"versions_to_upgrade":1}

[vbotbuildovich]

CI test results

test results on build#78710

test_class	test_method	test_arguments	test_kind	job_url	test_status	passed	reason	test_history
ACLUpgradeTest	test_acl_operations_during_upgrade	null	integration	https://buildkite.com/redpanda/redpanda/builds/78710#019b9e75-1fe4-4fe7-b223-e741b55961fb	FLAKY	10/11	Test PASSES after retries.No significant increase in flaky rate(baseline=0.0000, p0=1.0000, reject_threshold=0.0100. adj_baseline=0.1000, p1=0.3487, trust_threshold=0.5000)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=ACLUpgradeTest&test_method=test_acl_operations_during_upgrade
MountUnmountIcebergTest	test_simple_remount	{"cloud_storage_type": 1}	integration	https://buildkite.com/redpanda/redpanda/builds/78710#019b9e70-e873-4e89-b55c-f1f75a9cd969	FLAKY	9/11	Test PASSES after retries.No significant increase in flaky rate(baseline=0.1148, p0=0.7044, reject_threshold=0.0100. adj_baseline=0.3063, p1=0.1398, trust_threshold=0.5000)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=MountUnmountIcebergTest&test_method=test_simple_remount
PartitionReassignmentsTest	test_reassignments_cancel	null	integration	https://buildkite.com/redpanda/redpanda/builds/78710#019b9e75-1ff0-4327-8648-f70cfa335648	FLAKY	9/11	Test PASSES after retries.No significant increase in flaky rate(baseline=0.1143, p0=0.7029, reject_threshold=0.0100. adj_baseline=0.3052, p1=0.1414, trust_threshold=0.5000)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=PartitionReassignmentsTest&test_method=test_reassignments_cancel
VerifyConsumerOffsetsThruUpgrades	test_consumer_group_offsets	{"versions_to_upgrade": 1}	integration	https://buildkite.com/redpanda/redpanda/builds/78710#019b9e70-e873-4e89-b55c-f1f75a9cd969	FLAKY	8/11	Test FAILS after retries.Significant increase in flaky rate(baseline=0.0000, p0=0.0000, reject_threshold=0.0100)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=VerifyConsumerOffsetsThruUpgrades&test_method=test_consumer_group_offsets