Bump doorkeeper from 5.5.4 to 5.6.0

Bumps [doorkeeper](https://github.com/doorkeeper-gem/doorkeeper) from 5.5.4 to 5.6.0.
- [Release notes](https://github.com/doorkeeper-gem/doorkeeper/releases)
- [Changelog](https://github.com/doorkeeper-gem/doorkeeper/blob/main/CHANGELOG.md)
- [Commits](doorkeeper-gem/doorkeeper@v5.5.4...v5.6.0)

---
updated-dependencies:
- dependency-name: doorkeeper
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -5,7 +5,7 @@ source "http://rubygems.org"
 ruby "3.1.0"
 
 gem "rails", "~> 7.0"
-gem "doorkeeper", "~> 5.5.4"
+gem "doorkeeper", "~> 5.6.0"
 gem "devise", "~> 4.8"
 gem "sprockets-rails", require: "sprockets/railtie"
 

Gemfile.lock

@@ -86,7 +86,7 @@ GEM
       warden (~> 1.2.3)
     diff-lcs (1.5.0)
     digest (3.1.0)
-    doorkeeper (5.5.4)
+    doorkeeper (5.6.0)
       railties (>= 5)
     erubi (1.11.0)
     execjs (2.8.1)
@@ -270,7 +270,7 @@ DEPENDENCIES
   coderay
   database_cleaner
   devise (~> 4.8)
-  doorkeeper (~> 5.5.4)
+  doorkeeper (~> 5.6.0)
   factory_bot_rails
   faker
   jquery-rails