Fix a false positive for `Capybara/SpecificFinders` when `find` with kind option

Support the following cases:

find(:css, '#some-id')

Before submitting the PR make sure the following are checked:

[x] Feature branch is up-to-date with main (if not - rebase it).
[x] Squashed related commits together.
[x] Added tests.
[x] Updated documentation.
[x] Added an entry to the CHANGELOG.md if the new code introduces user-observable changes.
[x] The build (bundle exec rake) passes (be sure to run this locally, since it may produce updated documentation that you will need to commit).

rubocop / rubocop-capybara