Bump bootsnap to 1.1.1

What does this MR do?

Updates gem bootsnap to the version 1.1.1.
This version has a fix of https://github.com/Shopify/bootsnap/pull/66

That bug has been seen by users in https://gitlab.com/gitlab-org/gitlab-ce/issues/34084 and in comments for https://about.gitlab.com/2017/06/22/gitlab-9-3-released/

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • 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

What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/34084