LCORE-5406: Update base images to 3.4.7 - #360

• Namespace: lightspeed-core-tenant
• PipelineRun: rag-content-cuda-12-9-0-6-on-pull-request-p5pq4

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Task Statuses:

Status	Duration	Name
🟢 Succeeded	7 seconds	init
🟢 Succeeded	12 seconds	clone-repository
🔴 Failed	3 minutes	prefetch-dependencies

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Failure snippet:

task prefetch-dependencies has the status "TaskRunCancelled":

TaskRun "rag-conted9306e45be39e0d1e201866a70f9730c-prefetch-dependencies" was cancelled. TaskRun cancelled as the PipelineRun it belongs to has been cancelled.