[Security] Bump doorkeeper from 5.3.1 to 5.3.2 (#13613)

[Security] Bump doorkeeper from 5.3.1 to 5.3.2 (#13613)

Bumps [doorkeeper](https://github.com/doorkeeper-gem/doorkeeper) from 5.3.1 to 5.3.2. **This update includes a security fix.**
- [Release notes](https://github.com/doorkeeper-gem/doorkeeper/releases)
- [Changelog](https://github.com/doorkeeper-gem/doorkeeper/blob/master/CHANGELOG.md)
- [Commits](https://github.com/doorkeeper-gem/doorkeeper/compare/v.5.3.1...v5.3.2)

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