feature(cli): removes the necessity to pass --config to read the default configuration file BREAKING

[sverweij]

Description

• removes the necessity to pass --config on the cli
• adjusts the documentation accordingly (including help in error messages)
• updates the run scripts that used the default configuration file name accordingly

Motivation and Context

As dependency-cruiser is likely used 99.9% of the time with a configuration file, it is more user friendly to be able to run it without having to specify where the configuration file lives, especially if it's on the default location.

This is a 🚨 BREAKING change for the few folks who run dependency-cruiser without a configuration file. Those will have to use the (already existing) --no-config command line option in stead.

How Has This Been Tested?

• green ci
• manual checks with and without --config present on the command line

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Documentation only change
• Refactor (non-breaking change which fixes an issue without changing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• 📖

  • My change doesn't require a documentation update, or ...
  • it does and I have updated it

• ⚖️

  • The contribution will be subject to The MIT license, and I'm OK with that.
  • The contribution is my own original work.
  • I am ok with the stuff in CONTRIBUTING.md.