chore: oclif v2 migration

[florind-ens]

Description

Some testing is needed before I switch it to Ready for Review.

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #517 (dc2f300) into master (073bb5b) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #517   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        50           
  Lines         2600      2598    -2     
  Branches       473       473           
=========================================
- Hits          2600      2598    -2     

Impacted Files	Coverage Δ
src/commands/app/add/action.js	100.00% <100.00%> (ø)
src/commands/app/add/ci.js	100.00% <100.00%> (ø)
src/commands/app/add/event.js	100.00% <100.00%> (ø)
src/commands/app/add/extension.js	100.00% <100.00%> (ø)
src/commands/app/add/index.js	100.00% <100.00%> (ø)
src/commands/app/add/service.js	100.00% <100.00%> (ø)
src/commands/app/add/web-assets.js	100.00% <100.00%> (ø)
src/commands/app/build.js	100.00% <100.00%> (ø)
src/commands/app/config/get/index.js	100.00% <100.00%> (ø)
src/commands/app/config/index.js	100.00% <100.00%> (ø)
... and 21 more

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