Update dependency knapsack to v4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Confidence
knapsack	1.14.0 -> 4.0.0

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Release Notes

KnapsackPro/knapsack (knapsack)

v4.0.0

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• (breaking change) Remove support for RSpec 2.x. This change was already done by accident in the pull request when we added the RSpec context hook, which is available only since RSpec 3.x.

• Use RSpec example block argument instead of the global RSpec.current_example. This allows to run tests with the async-rspec gem.

  #​117

v3.1.0

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• Sorting Algorithm: round robin to least connections

  #​99

v3.0.0

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• (breaking change) Require minimum Ruby 2.2 version

  #​115

• (breaking change) Drop support for Minitest 4.x. Force to use minitest 5.x even on CI.

  #​114

• Replace Travis CI with GitHub Actions

  #​112

v2.0.0

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• (breaking change) Ruby 2.1 is a minimum required version

  #​113

• Use Ruby 3 and add small development adjustments in codebase

  #​110

v1.22.0

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• Update time offset warning

  #​105

v1.21.1

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• Fix a bug with tracking time for pending specs in RSpec

  #​109

v1.21.0

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• Track time in before and after :context hooks

  #​107

v1.20.0

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• Use Process.clock_gettime to measure track execution time

  #​100

v1.19.0

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• Add support for Bitbucket Pipelines

  #​97

v1.18.0

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• Add support for Semaphore 2.0

  #​92

v1.17.2

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• Allow for new bundler in development

• Test Ruby 2.6 on CI

• Add info about Knapsack Pro Queue Mode in knapsack output

• Update URL to FAQ in knapsack output

  #​90

v1.17.1

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• Fix RSpec signal handling by replacing process

  #​86

v1.17.0

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• Add support for GitLab CI ENV variable CI_NODE_INDEX starting from 1.

  #​83

v1.16.0

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• Add support for Ruby >= 1.9.3.

  #​77

v1.15.0

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• Add support for Cucumber 3.

  #​68

v1.14.1

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• Update RSpec timing adapter to be more resilient.

  #​64

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