Expose version information

[Darhazer]

This will enable outputting the rubocop-sequel version in rubocop -V

Before:

1.30.1 (using Parser 3.1.2.0, rubocop-ast 1.18.0, running on ruby 3.1.2 arm64-darwin21)
  - rubocop-performance 1.14.1

After:

1.30.1 (using Parser 3.1.2.0, rubocop-ast 1.18.0, running on ruby 3.1.2 arm64-darwin21)
  - rubocop-performance 1.14.1
  - rubocop-sequel 0.33.0