fix: sealing: Make lotus-worker report GPU usage to miner during ReplicaUpdate task

[jcrowthe]

Related Issues

Fixes #10767

Proposed Changes

This PR fixes a bug in which a lotus-worker never reports GPU usage status to the lotus-miner when tasked with a ReplicaUpdate task.

lotus-miner sealing workers prior to this change:

Worker 84411102-45c2-4581-b988-a8b8e268d0c9, host worker6
TASK: RU(1/1)
CPU:  [||||||                                                          ] 6/64 core(s) in use
RAM:  [|||||||||||||||||||||||||||||                                   ] 44% 224.5 GiB/503.8 GiB
VMEM: [|||||||||||||||||||||||||||||                                   ] 44% 224.5 GiB/503.8 GiB
GPU:  [                                                                ] 0% 0.00/1 gpu(s) in use
GPU: NVIDIA GeForce RTX 3090, not used

After this change:

Worker 4ffe89c9-a31d-434a-8bf0-208aab47f0d4, host worker6
TASK: RU(1/1)
CPU:  [||||||                                                          ] 6/64 core(s) in use
RAM:  [||                                                              ] 1% 13.83 GiB/503.8 GiB
VMEM: [||                                                              ] 1% 9.83 GiB/503.8 GiB
GPU:  [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||] 100% 1.00/1 gpu(s) in use
GPU: NVIDIA GeForce RTX 3090, used

This fixes a scheduling bug where lotus-miner might schedule too many GPU-based tasks to a single worker, causing CUDA out-of-memory conditions.

Additional Info

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test
  • area, e.g. api, chain, state, market, mempool, multisig, networking, paych, proving, sealing, wallet, deps
• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green

[jcrowthe]

Looks like there were some docs needing generation as well. Closing mine in favor of the identical #10806 with docs.