fix: ux: Change Propose-worker msg

[rjan90]

Proposed Changes

Changes the message so its clear that it´s only Storage Providers without active deadlines that needs to call confirm-change-worker.

Fixes: #7498

Checklist

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• All commits have a clear commit message.
• The 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, INTERFACE BREAKING CHANGE, CONSENSUS BREAKING, build, chore, ci, docs,perf, refactor, revert, style, test
  • area: api, chain, state, vm, data transfer, market, mempool, message, block production, multisig, networking, paychan, proving, sealing, wallet, deps
• This PR has tests for new functionality or change in behaviour
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• CI is green

[codecov]

Codecov Report

Merging #8384 (e2781ea) into master (caeeb6a) will decrease coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #8384      +/-   ##
==========================================
- Coverage   40.26%   40.19%   -0.07%     
==========================================
  Files         683      683              
  Lines       74480    74480              
==========================================
- Hits        29989    29937      -52     
- Misses      39263    39302      +39     
- Partials     5228     5241      +13     

Impacted Files	Coverage Δ
cmd/lotus-miner/actor.go	7.92% <100.00%> (ø)
chain/actors/builtin/miner/diff.go	48.52% <0.00%> (-10.30%)	⬇️
chain/events/observer.go	71.64% <0.00%> (-6.72%)	⬇️
extern/storage-sealing/currentdealinfo.go	71.17% <0.00%> (-5.41%)	⬇️
miner/warmup.go	71.42% <0.00%> (-4.09%)	⬇️
miner/miner.go	57.37% <0.00%> (-2.63%)	⬇️
storage/wdpost_sched.go	75.49% <0.00%> (-1.97%)	⬇️
chain/exchange/client.go	52.96% <0.00%> (-1.70%)	⬇️
chain/events/events_called.go	83.90% <0.00%> (-1.47%)	⬇️
chain/stmgr/searchwait.go	67.30% <0.00%> (-1.29%)	⬇️
... and 14 more