PRBv3 stake changes not submitted to chain

[Nexus2k]

I have a running PRBv3 setup on Khala. When I adjust the stake of a worker I expect PRBv3 to adjust the stake after a restart of the WM service. However it doesn't seem to care about the actual stake of the worker.

I update the stake thru a direct API call from a python script (which basically just modifies the stake value) and then restart WM from the Monitor UI.

Steps to reproduce:

1. Setup PRBv3
2. setup a worker with stake at 1000 PHA
3. have it working on-chain
4. change stake to 2000 PHA
5. restart PRBv3 (aka WM)

Expected outcome:
Stake should be checked on-chain vs. configured and stake update request should be sent.

Actual outcome:
You will see stake never get's updated.

[Nexus2k]

I believe https://github.com/search?q=repo%3APhala-Network%2Fphala-blockchain%20path%3A%2F%5Estandalone%5C%2Fprb%5C%2F%2F%20stake&type=code is missing some code to check the on-chain stake vs. the configured stake, because stake updates need a RESTART_COMPUTING call.

[Nexus2k]

See PRBv2 code where this happens at https://github.com/Phala-Network/runtime-bridge/blob/80fde2c03819aced18ab8034fec41c9170853dbf/src/lifecycle/runner/state_machine.js#L149

[Nexus2k]

I've added this feature now in my version of the WM, but won't contribute because the devs have no respect for other pressing issues like #1285