[Merged by Bors] - chore: get rid of urfave

[acud]

Motivation

Changing urfave/cli in cmd/merge-nodes in favor of cobra.

Description

Removing this unnecessary dependency. We already depend and use cobra and urfave is just used in one command.

Test Plan

Tests passing.

TODO

• Explain motivation or link existing issue(s)
• Test changes and document test plan
• Update documentation as needed
• Update changelog as needed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.9%. Comparing base (02bcbe9) to head (e98838b).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop   #6183     +/-   ##
=========================================
- Coverage     81.9%   81.9%   -0.1%     
=========================================
  Files          301     301             
  Lines        32606   32606             
=========================================
- Hits         26711   26706      -5     
- Misses        4167    4172      +5     
  Partials      1728    1728             

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[acud]

bors try

[spacemesh-bors]

try

Build failed:

• systest-status

[acud]

bors merge

[spacemesh-bors]

Pull request successfully merged into develop.

Build succeeded:

• ci-status
• systest-status