deps: bump octokit from 4.24.0 to 4.25.0

Created by: dependabot[bot]

Bumps octokit from 4.24.0 to 4.25.0.

Release notes

Sourced from octokit's releases.

v4.25.0

DX Improvements

• Rubocop improvements by @​timrogers in octokit/octokit.rb#1441
• Require multi-factor authentication to push new releases to RubyGems by @​timrogers in octokit/octokit.rb#1443

CI Improvements

Updates all build scripts to be more durable and adds details on how to run a manual file integrity check by @​nickfloyd in octokit/octokit.rb#1446

Housekeeping

• Drop support for Ruby 1.9.2 in Octokit::Client::Contents#create_contents by @​timrogers in octokit/octokit.rb#1442

Full Changelog: https://github.com/octokit/octokit.rb/compare/v4.24.0...v4.25.0

Commits

• a73386b Release 4.25.0
• e3c8875 Release: v4.25.0
• 1c8edec Merge pull request #1446 from octokit/updates-release-steps-ic
• 121fafc adds the validator script
• c9a2e52 reworks the scripts to be more durable / predictable / informational when exe...
• 3da85b1 moves the check to a separate step
• f499f69 Adds details on how to run a manual file integrity check
• dd622a3 Merge pull request #1442 from octokit/base64
• be67ec0 Merge branch '4-stable' into base64
• c1f4c60 Merge pull request #1443 from octokit/rubygems-mfa
• Additional commits viewable in compare view

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