RSpec/InvalidFeatureCategory: Suggest an alternative for typos

What does this MR do and why?

This MR enhances 👮 RSpec/InvalidFeatureCategory to suggest an alternative (via did_you_mean stdlib) for simple typos:

For example:

Inspecting 1 file
C

Offenses:

spec/rubocop/cop/rspec/invalid_feature_category_spec.rb:8:79: C: RSpec/InvalidFeatureCategory: Please use a valid feature category. Did you mean :tooling? See https://docs.gitlab.com/ee/development/feature_categorization/#rspec-examples.
RSpec.describe RuboCop::Cop::RSpec::InvalidFeatureCategory, feature_category: :toolnig do
                                                                              ^^^^^^^^

1 file inspected, 1 offense detected

This helps spotting typos like in !105783 (comment 1264713201).

Screenshots or screen recordings

Did you mean?

How to set up and validate locally

1. Make a typo in feature_category somewhere in a spec.
2. Run rubocop spec/rubocop/cop/rspec/invalid_feature_category_spec.rb <file>
3. Enjoy the suggestion

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.