deps: update octokit requirement from >= 4.21, < 6.0 to >= 4.21, < 7.0

Created by: dependabot[bot]

Updates the requirements on octokit to permit the latest version.

Release notes

Sourced from octokit's releases.

v6.0.0

We're releasing v6.0.0 because #1494 and #1495 are technically breaking changes although the APIs that underlie this functionalilty have been not operational for some time.

What's Changed

• Fix broken pagination in ActionsWorkflowRuns by @​luke-engle in octokit/octokit.rb#1488
• Remove Octokit::Client::Hooks#available_hooks by @​kfcampbell in octokit/octokit.rb#1495
• Change the default value of update_ref force to false by @​pocke in octokit/octokit.rb#980
• Remove Octokit::Client::Authorizations by @​kfcampbell in octokit/octokit.rb#1494
• Bump to v6.0.0 by @​kfcampbell in octokit/octokit.rb#1496

New Contributors

• @​luke-engle made their first contribution in octokit/octokit.rb#1488
• @​kfcampbell made their first contribution in octokit/octokit.rb#1495

Full Changelog: https://github.com/octokit/octokit.rb/compare/v5.6.1...v6.0.0

Commits

• deb9547 v6.0.0
• 5e3dd60 Bump to v6.0.0 (#1496)
• 017b0e3 Remove Octokit::Client::Authorizations (#1494)
• 8413882 Change the default value of update_ref force to false (#980)
• ddeb189 Remove Octokit::Client::Hooks#available_hooks (#1495)
• 8517612 fix: Fixes broken pagination in ActionsWorkflowRuns
• e0e3172 Fix linter issues
• 08d1ed0 Merge branch 'main' of https://github.com/luke-engle/octokit.rb
• 311ce8b Remove debug statement
• 7175acb Merge branch 'main' into main
• Additional commits viewable in compare view

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