Use pry-byebug instead byebug

Why was this MR needed?

We already have pry-rails and can use pry with byebug too.

• Changelog entry added
• n/a Documentation created/updated
• n/a API support added
• Tests
  • n/a Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

/cc @rymai