build(deps): bump doorkeeper from 5.5.0 to 5.5.3 (#832)

Bumps [doorkeeper](https://github.com/doorkeeper-gem/doorkeeper) from 5.5.0 to 5.5.3.
- [Release notes](https://github.com/doorkeeper-gem/doorkeeper/releases)
- [Changelog](https://github.com/doorkeeper-gem/doorkeeper/blob/main/CHANGELOG.md)
- [Commits](doorkeeper-gem/doorkeeper@v5.5.0...v5.5.3)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -131,7 +131,7 @@ GEM
       doorkeeper
       rails
     docile (1.3.5)
-    doorkeeper (5.5.0)
+    doorkeeper (5.5.3)
       railties (>= 5)
     dotenv (2.7.6)
     dotenv-rails (2.7.6)