feat(bench): Use bench_config for worker limits on dedicated servers

[kehwar]

Partial fix for: #2002

[codecov]

Codecov Report

❌ Patch coverage is 96.29630% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 55.94%. Comparing base (bd280b0) to head (79d7b8f).
⚠️ Report is 9 commits behind head on develop.

Files with missing lines	Patch %	Lines
press/press/doctype/bench/test_bench.py	95.45%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #6045       +/-   ##
============================================
- Coverage    90.75%   55.94%   -34.82%     
============================================
  Files          109      910      +801     
  Lines        17369    75776    +58407     
  Branches       525      524        -1     
============================================
+ Hits         15763    42390    +26627     
- Misses        1578    33358    +31780     
  Partials        28       28               

Flag	Coverage Δ
dashboard	90.75% <ø> (ø)

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