Add Ruff as supported tool

[sbrunner]

Description

Add Ruff as supported tool

I also modified the pylint output to:

• Avoid having a None in the message
• Add the character if available
• Be stronger
• Be more like the pylint output

And the profile merge to be able to better activate deactivate feature from inherited template, then I do a deep merge of the dictionaries that's in the option.

Related Issue

Fix #601

How Has This Been Tested?

On prospector code

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)

[Pierre-Sassoulas]

Looks great, some questions to make sure we thought about it, but this is mergeable as is imo.

[Pierre-Sassoulas]

You're making prospector enter the second half of the twenties @sbrunner !

[carlio]

You're making prospector enter the second half of the twenties @sbrunner !

Now I feel old :)