Bump octokit from 4.19.0 to 4.21.0

[dependabot-preview[bot]]

Bumps octokit from 4.19.0 to 4.21.0.

Release notes

Sourced from octokit's releases.

v4.21.0

API Support

• #1319 Add delete workflow run support @​szemek
• #1322 Add match refs support @​AHaymond
• #1329 Add rename branch support @​gmcgibbon
• #1332 Add billing actions support @​M-Yamashita01

Error handling

• #1324 Handle path diff too large errors @​yykamei

Code clean up

• #1326 Remove graduated preview headers @​ivailop

Documentation

• #1314 Update authentication usage @​curquiza
• #1317 Fix logo link @​gjtorikian
• #1318 Fix GitHub typo @​bl-ue

v4.20.0

API Support

• #1304 Added the ability to delete a deployment @​jer-k
• #1308 Add repo vulnerability alerts related functionality for repositories @​calvinhughes

Bug fixes

• #1309 Paginate outside_collaborators calls @​sds
• #1316 Uses of FaradayMiddleware#on_complete should not be private @​tarebyte

Code improvements

• #1131 Add CommitIsNotPartOfPullRequest error @​wata727
• #1303 Remove integrations preview header @​MichaelViveros
• #1307 Raise Octokit::InstallationSuspended when another error is received @​yykamei

Documentation

• #1302 Add documentation on how to specify the ref option for RubyDoc @​aomathwift
• #1311 Fix Code of Conduct link in Table of Contents @​eduardoj

Commits

• 1aff89c Release 4.21.0
• 2254f0f Merge pull request #1314 from curquiza/update-readme
• 3b2741d Merge branch '4-stable' into update-readme
• f639176 Merge pull request #1332 from M-Yamashita01/add-get-github-actions-billing-fo...
• 3a16c23 Add billing_actions method to Octokit::Client::Organizations module.
• d1628eb Merge pull request #1329 from gmcgibbon/rename_branch
• 0be5df7 Rename branch support
• be6b5a0 Merge pull request #1326 from ivailop/4-stable
• ba313b2 Remove "graduated" preview headers
• d5ad4cc Merge pull request #1324 from yykamei/path-diff-too-large
• Additional commits viewable in compare view

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