[Security] Bump devise from 4.6.2 to 4.7.1

[dependabot-preview]

Bumps devise from 4.6.2 to 4.7.1. This update includes a security fix.

Vulnerabilities fixed

Sourced from The Ruby Advisory Database.

Devise Gem for Ruby confirmation token validation with a blank string
Devise before 4.7.1 confirms accounts upon receiving a request with a blank
confirmation_token, if a database record has a blank value in the confirmation_token column.
However, there is no scenario within Devise itself in which such database records would exist.

Patched versions: >= 4.7.1
Unaffected versions: none

Changelog

Sourced from devise's changelog.

4.7.1 - 2019-09-06

• bug fixes
  • Fix an edge case where records with a blank confirmation_token could be confirmed (by @​tegon)
  • Fix typo inside update_needs_confirmation i18n key (by @​lslm)

4.7.0 - 2019-08-19

• enhancements

  • Support Rails 6.0
  • Update CI to rails 6.0.0.beta3 (by @​tunnes)
  • refactor method name to be more consistent (by @​saiqulhaq)
  • Fix rails 6.0.rc1 email uniqueness validation deprecation warning (by @​Vasfed)

• bug fixes

  • Add autocomplete="new-password" to password_confirmation fields (by @​ferrl)
  • Fix rails_51_and_up? method for Rails 6.rc1 (by @​igorkasyanchuk)

Commits

• 098345a Prepare for version 4.7.1
• caa1a55 Update CHANGELOG.md [ci skip]
• fee43f3 Always return an error when confirmation_token is blank (#5132)
• fad6074 Merge pull request #5125 from olleolleolle/patch-1
• 5ceef2d Merge pull request #5131 from lslm/ls-fix-typo
• 6635caf Fix typo
• e051360 CI: Drop unused Travis sudo: false directive
• 6bb74c5 Update CHANGELOG.md [ci skip]
• a790570 Prepare for 4.7.0 release
• 12fc5b7 Update README.md (#5115)
• Additional commits viewable in compare view

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