tests: update ducktape ref

[gousteris]

Update ducktape ref to HEAD of 0.12.x-redpanda branch. This version introduces --allow-test-failures flag and will be used in CI to improve retries

Backports Required

• none - not a bug fix
• none - this is a backport
• none - issue does not exist in previous branches
• none - papercut/not impactful enough to backport
• v25.1.x
• v24.3.x
• v24.2.x

Release Notes

• none

[vbotbuildovich]

CI test results

test results on build#66251

test_class	test_method	test_arguments	test_kind	job_url	test_status	passed	reason
AdminUUIDOperationsTest	test_uuid_override_multinode	{"force": false, "mode": 1}	ducktape	https://buildkite.com/redpanda/redpanda/builds/66251#0196f2de-95d7-439c-a55b-f82943801105	FLAKY	20/21	upstream reliability is '100.0'. current run reliability is '95.23809523809523'. drift is 4.7619 and the allowed drift is set to 50. The test should PASS
AvailabilityTests	test_recovery_after_catastrophic_failure		ducktape	https://buildkite.com/redpanda/redpanda/builds/66251#0196f2de-95d7-439c-a55b-f82943801105	FLAKY	20/21	upstream reliability is '99.14893617021276'. current run reliability is '95.23809523809523'. drift is 3.91084 and the allowed drift is set to 50. The test should PASS
STSRoleFetchTests	test_write		ducktape	https://buildkite.com/redpanda/redpanda/builds/66251#0196f2de-95d8-4b7d-9034-bfa087b896dd	FLAKY	20/21	upstream reliability is '100.0'. current run reliability is '95.23809523809523'. drift is 4.7619 and the allowed drift is set to 50. The test should PASS
NodesDecommissioningTest	test_recommissioning_one_of_decommissioned_nodes		ducktape	https://buildkite.com/redpanda/redpanda/builds/66251#0196f2de-95d8-4b7d-9034-bfa087b896dd	FLAKY	20/21	upstream reliability is '100.0'. current run reliability is '95.23809523809523'. drift is 4.7619 and the allowed drift is set to 50. The test should PASS
RandomNodeOperationsTest	test_node_operations	{"cloud_storage_type": 2, "enable_failures": false, "mixed_versions": false, "with_chunked_compaction": true, "with_iceberg": false, "with_tiered_storage": true}	ducktape	https://buildkite.com/redpanda/redpanda/builds/66251#0196f31b-32b9-4769-b741-db0badbd791f	FLAKY	20/21	upstream reliability is '95.88477366255144'. current run reliability is '95.23809523809523'. drift is 0.64668 and the allowed drift is set to 50. The test should PASS

[vbotbuildovich]

/backport v25.1.x

[vbotbuildovich]

/backport v24.3.x

[gousteris]

/backport v24.3.x