Fix a false positive for Naming/AccessorMethodName with type of the first argument is other than arg

[ydah]

This PR is fixed based on a similar problem: #10574

Naming/AccessorMethodName should only inform offense
if the type of the first argument is arg.

# Bad
def set_something(arg)
  # ...
end

# Good
def set_something(arg = :default)
  # ...
end

def set_something(*args)
  # ...
end

def set_something(k: v)
  # ...
end

def set_something(k:)
  # ...
end

def set_something(**options)
  # ...
end

def set_something(&block)
  # ...
end

def set_something(...)
  # ...
end

---

Before submitting the PR make sure the following are checked:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
  * [ ] Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
• Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.

[koic]

Thanks!