Update pry requirement from ~> 0.10.4 to ~> 0.12.2

[dependabot-preview]

Updates the requirements on pry to permit the latest version.

Changelog

Sourced from pry's changelog.

[v0.12.2][v0.12.2] (November 12, 2018)

Bug fixes

• Restore removed deprecations, which were removed by accident due to a bad rebase.

[v0.12.1][v0.12.1] (November 12, 2018)

Bug fixes

• Stopped creating a new hash each time Pry::Prompt#[] is invoked (#1855)
• Fixed less pager not working when it's available (#1861)

[v0.12.0][v0.12.0] (November 5, 2018)

Major changes

• Dropped support for Rubinius (#1785)

Features

• Added a new command, clear-screen, that clears the content of the screen Pry is running in regardless of platform (Windows or UNIX-like) (#1723)

• Added a new command, gem-stat, that prints gem statistics such as gem dependencies and downloads (#1707)

• Added support for nested exceptions for the wtf command (#1791)

• Added support for dynamic prompt names (#1833)

  # pryrc
  Pry.config.prompt_name = Pry.lazy { rand(100) }
  Session
  [1] 80(main)>
  [2] 87(main)>
  [3] 30(main)>

• Added support for XDG Base Directory Specification (#1609, #1844, (#1848))

• Removed the simple-prompt. Use change-prompt simple instead. The list-prompt command was removed and embedded as change-prompt --list (#1849)

Commits

• 14a0273 Release v0.12.2
• 2894b02 Merge pull request #1880 from pry/release-0-12-1
• c9e7489 Release v0.12.1
• bdd39b0 pager.rb: fix Helpers constant invocation
• 8817c3a do not create a new hash each time a prompt is accessed via Pry::Prompt[]
• 4b0b49b Release v0.12.0
• 2113ae2 gemspec: change method_source back to '~> 0.9.0'
• 6ef68d7 Merge pull request #1780 from pry/changelog-next-version
• f95b7a7 CHANGELOG: prepare for release v0.12.0
• 5bf2a5b rubocop: temporarily ignore certain Naming/MethodName offences
• Additional commits viewable in compare view

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