fix: move findPort as static method on Server

[anshumanv]

• 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?

existing

Motivation / Use-Case

it will allow to solve regressions after change logic with port

Breaking Changes

nope

Additional Info

[codecov]

Codecov Report

Merging #3296 (b9f1229) into master (fc9028c) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3296   +/-   ##
=======================================
  Coverage   95.55%   95.55%           
=======================================
  Files          34       34           
  Lines        1260     1260           
  Branches      357      357           
=======================================
  Hits         1204     1204           
  Misses         52       52           
  Partials        4        4           

Impacted Files	Coverage Δ
lib/Server.js	95.73% <100.00%> (+0.11%)	⬆️
lib/utils/findPort.js	100.00% <100.00%> (ø)

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[anshumanv]

@alexander-akait @snitin315 👍

[alexander-akait]

We should avoid break old version of CLI

[anshumanv]

Fixed

[alexander-akait]

@anshumanv Can you rebase?

[anshumanv]

Done 👍