Bump flipper from 0.26.2 to 0.28.0

[dependabot]

Bumps flipper from 0.26.2 to 0.28.0.

Changelog

Sourced from flipper's changelog.

0.28.0

Additions/Changes

• Allow multiple actors for Flipper.enabled?. Improves performance of feature flags for multiple actors and simplifies code for users of flipper. This likely breaks things for anyone using Flipper internal classes related to actors, but that isn't likely you so you should be fine.

  - [user, user.team, user.org].any? { |actor| Flipper.enabled?(:my_feature, actor) }
  + Flipper.enabled?(:my_feature, user, user.team, user.org)

Deprecations

• :thing in enabled? instrumentation payload. Use :actors instead.

  ActiveSupport::Notifications.subscribe('enabled?.feature_operation.flipper') do |name, start, finish, id, payload|
  -   payload[:thing]
  +   payload[:actors]
  end

0.27.1

• Quick fix for missing require of "flipper/version" that was causing issues with some flipper-ui people.

0.27.0

• Easy Import/Export (jnunemaker/flipper#709). This has some breaking changes but only if you are using flipper internals. If you are just using Flipper.* methods, you'll be fine.

Commits

• 09d216f Release 0.28.0
• 3c20595 Update changelog
• 8497a34 Add a few more multiple actor specs
• 99c79eb Add example with multiple actors and in different order
• a88fb28 Merge pull request #710 from jnunemaker/array-of-actors
• aa4a4d5 Another type spot
• 2a2bbdc A couple minor type tweaks
• bdf1d3b Just add multiple actors on
• 5aa3fab Pass flipper_ids so we can make that supported on the backend in cloud
• 3c80c13 flipper_id should be string
• Additional commits viewable in compare view

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[dependabot]

A newer version of flipper exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.