feat(cli): print-config now can be configured to print a json in stdout

[marcalexiei]

fixes #3819

Description

Now print-config cli option accept 3 possible parameters:

• '' (empty) - same behaviour of current implementation
• text - same behaviour of current implementation
• json - prints a raw json

Motivation and Context

Parse the configuration from stdout

Usage examples

npx commitlint --print-config
npx commitlint --print-config=text

npx commitlint --print-config=json

How Has This Been Tested?

Unit tests have been added to @commitlint/cli/src/cli.test.ts to test all 3 scenarios.
--help test has been updated to match the new behaviour of print-config

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:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[escapedcat]

Thanks!