[Security] Bump rack-cors from 0.4.1 to 1.0.6

[dependabot-preview]

Bumps rack-cors from 0.4.1 to 1.0.6. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects rack-cors
An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

Affected versions: < 1.0.4

Changelog

Sourced from rack-cors's changelog.

1.0.6 - 2019-11-14

Changed

• Use Rack::Utils.escape to make compat with Rack 1.6.0

1.0.5 - 2019-11-14

Changed

• Update Gem spec to require rack >= 1.6.0

1.0.4 - 2019-11-13

Security

• Escape and resolve path before evaluating resource rules (thanks to Colby Morgan)

1.0.3 - 2019-03-24

Changed

• Don't send 'Content-Type' header with pre-flight requests
• Allow ruby array for vary header config

1.0.2 - 2017-10-22

Fixed

• Automatically allow simple headers when headers are set

1.0.1 - 2017-07-18

Fixed

• Allow lambda origin configuration

1.0.0 - 2017-07-15

Security

• Don't implicitly accept 'null' origins when 'file://' is specified
  (https://github-redirect.dependabot.com/cyu/rack-cors/pull/134)
• Ignore '' origins (https://github-redirect.dependabot.com/cyu/rack-cors/issues/139)
• Default credentials option on resources to false
  (https://github-redirect.dependabot.com/cyu/rack-cors/issues/95)
• Don't allow credentials option to be true if '*' is specified is origin
  (https://github-redirect.dependabot.com/cyu/rack-cors/pull/142)
• Don't reflect Origin header when '*' is specified as origin
  (https://github-redirect.dependabot.com/cyu/rack-cors/pull/142)

Fixed

• Don't respond immediately on non-matching preflight requests instead of
  sending them through the app (https://github-redirect.dependabot.com/cyu/rack-cors/pull/106)

Commits

• b3c06f1 Use escape instead of escape_path
• b704fda Up rack requirement
• baa02d2 Updating Gems to hopefully get rid of alerts in GH
• a5e8546 Reduce default max_age to a more sensible value
• e4d4fc3 Unescape and resolve paths before resource checks
• 145a5df [CI] Test against Ruby 2.6
• f77f89f Version 1.0.3
• ddcf819 Clean up gemspec
• 5fed623 Update rack gem
• 1137201 Update Rails4 example
• Additional commits viewable in compare view

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