Update highline requirement from ~> 1.6, >= 1.6.21 to >= 1.6.21, < 3.0

[dependabot[bot]]

Updates the requirements on highline to permit the latest version.

Changelog

Sourced from highline's changelog.

2.0.3 / 2019-10-11

• PR #245 - Suppress Psych.safe_load arg warn (@​koic)

2.0.2 / 2019-04-08

• PR #243 - Add new capital_letter option to menu index (@​Ana06)
  • This is a really special PR. It has come from "The Biggest Mobprogramming Session Ever" and around 250 people participated in crafting it!
• PR #241 - CI: Add 2.6 (@​olleolleolle)
• PR #240 - Avoid YARD warning UnknownParam (@​olleolleolle)

2.0.1 / 2019-01-23

• PR #238 / I #237 - Rescue Errno::ENOTTY when pipeing

2.0.0 / 2018-06-10

• Release 2.0.0 (major version release).

2.0.0-develop.16 / 2018-05-12

• PR #231 - Deprecate safe_level of ERB.new in Ruby 2.6 (@​koic)
• PR #230 - Fix behavior when shell and gather options are selected together

2.0.0-develop.15 / 2017-12-28

• PR #229 - Update .travis.yml. Add Ruby 2.5 to matrix (@​abinoam)

2.0.0-develop.14 / 2017-11-21

• PR #222 / I #221 - Fix inconsistent behaviour when using agree with readline (@​abinoam, @​ailisp)

2.0.0-develop.13 / 2017-11-05

• PR #219 - Make possible to use a callable as response (@​abinoam)

2.0.0-develop.12 / 2017-10-19

• PR #218 - Ease transition from 1.7.x to 2.0.x (@​abinoam)
  • Copy use_color from HighLine.default_instance
  • Expose IOConsoleCompatible
• PR #216 - Update .appveyor.yml - Fix Windows CI (@​abinoam)

2.0.0-develop.11 / 2017-09-25

• PR #215 - Apply several Rubocop stylistic suggestions (@​abinoam)
  • Update gemspec/Gemfile to newer standards
  • Update travis configuration fixing 1.9 problem
  • Adjust .rubocop.yml with things we don't want to change

2.0.0-develop.10 / 2017-06-29

• PR #214 - Remove $terminal (global variable) (@​abinoam)
  • Use HighLine.default_instance instead
  • Reorganize/Group code at lib/highline.rb

2.0.0-develop.9 / 2017-06-24

• PR #211 / PR #212 - HighLine#use_color= and use_color? as instance methods (@​abinoam, @​phiggins)

... (truncated)

Commits

• 5e4503f Release 2.0.3
• c0382bc Merge pull request #245 from koic/suppress_warn_for_psych_3_1_0_or_higher
• babfbe5 Suppress Psych.safe_load arg warn when using Psych 3.1.0+
• adcc557 Bump up version to 2.0.2
• d0ee876 Proudly Merge pull request #243 from The Biggest Mobprogramming Session Ever ...
• c553fbe Add tests and documentation for capital_letter
• 1c9a9a3 Move downcase of capital letter
• 154754b Refactor letter options for index
• 69c8ea5 Add new capital_letter option to menu index
• defb6ec Merge pull request #241 from olleolleolle/patch-1
• Additional commits viewable in compare view

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[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/179884554

The labels on this github issue will be updated when the story is started.

[strehle]

@dependabot rebase

[dependabot[bot]]

Looks like this PR is already up-to-date with master! If you'd still like to recreate it from scratch, overwriting any edits, you can request @dependabot recreate.

[strehle]

@dependabot recreate

[strehle]

@dependabot recreate

[strehle]

@dependabot recreate

[dependabot[bot]]

Looks like highline is no longer updatable, so this is no longer needed.