Replace deprecated maxWorkers by numWorker

[bsekachev]

Motivation and context

maxWorkers deprecated in nuclio 1.13.x (currently suggested by CVAT)
Warning message suggest to replace with numWorkers

https://docs.nuclio.io/en/1.13.x/reference/function-configuration/function-configuration-reference.html

How has this been tested?

Checklist

• I submit my changes into the develop branch
• I have created a changelog fragment
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (see GitHub docs)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.44%. Comparing base (7484e4d) to head (f2c8b42).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #9029   +/-   ##
========================================
  Coverage    73.43%   73.44%           
========================================
  Files          418      418           
  Lines        44299    44299           
  Branches      3870     3870           
========================================
+ Hits         32533    32536    +3     
+ Misses       11766    11763    -3     

Components	Coverage Δ
cvat-ui	77.44% <ø> (+0.01%)	⬆️
cvat-server	70.12% <ø> (ø)