Update chefstyle requirement from 1.5.7 to 1.5.9

[dependabot-preview]

Updates the requirements on chefstyle to permit the latest version.

Changelog

Sourced from chefstyle's changelog.

v1.5.9 (2020-12-30)

Merged Pull Requests

• Update to RuboCop 1.7 #121 (tas50)

v1.5.8 (2020-12-21)

Merged Pull Requests

• Update to RuboCop 1.6.1 #119 (tas50)

v1.5.7 (2020-12-04)

Merged Pull Requests

• Update to RuboCop 1.5.2 #118 (tas50)

v1.5.6 (2020-12-01)

Merged Pull Requests

• Update to Rubocop 1.4.1 #114 (tas50)
• Allow 1 line defs w/o a space between #115 (tas50)
• Update RuboCop engine to 1.4.2 #116 (tas50)
• Update RuboCop to 1.5.0 #117 (tas50)

v1.5.2 (2020-11-16)

Merged Pull Requests

• Update RuboCop to 1.3.1 #113 (tas50)

v1.5.1 (2020-11-12)

Merged Pull Requests

• Upgrade to RuboCop 1.3.0 #112 (tas50)

v1.5.0 (2020-11-05)

Merged Pull Requests

• Update to RuboCop 1.2 #110 (tas50)
• Enable new cops #111 (tas50)

v1.4.5 (2020-10-12)

Merged Pull Requests

• Update to RuboCop 0.93.1 #108 (tas50)

v1.4.4 (2020-10-08)

Merged Pull Requests

• Update to Rubocop 0.93 #107 (tas50)

Commits

• 5a5ac8e Bump version to 1.5.9 by Chef Expeditor
• 5b47418 Merge pull request #121 from chef/1.7
• 926eb65 Vendor rubocop-1.7.0 upstream configuration.
• 68bd9b8 Update to RuboCop 1.7.0
• d50b12c Update CHANGELOG.md to reflect the promotion of 1.5.8
• eb84b14 Bump version to 1.5.8 by Chef Expeditor
• 7ca143b Merge pull request #119 from chef/161
• aaae60a Vendor rubocop-1.6.1 upstream configuration.
• ba148c9 Update to RuboCop 1.6.1
• 4beb765 Update CHANGELOG.md to reflect the promotion of 1.5.7
• See full diff in compare view

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