fix: deprecation message about setup now warning about v4

[alexander-akait]

• This is a bugfix
• This is a feature
• This is a code refactor
• This is a test update
• This is a docs update
• This is a metadata update

For Bugs and Features; did you add new tests?

No need

Motivation / Use-Case

We don't remove setup in v3, we should do this for v4

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

Merging #1684 into master will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1684      +/-   ##
==========================================
+ Coverage   79.59%   79.63%   +0.03%     
==========================================
  Files           7        7              
  Lines         544      545       +1     
  Branches      165      166       +1     
==========================================
+ Hits          433      434       +1     
  Misses         84       84              
  Partials       27       27

Impacted Files	Coverage Δ
lib/Server.js	80.15% <ø> (ø)	⬆️
lib/utils/createConfig.js	95.12% <0%> (+0.06%)	⬆️

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[MdGolam-Kibria]

ok