Update doorkeeper
What does this MR do?
Update doorkeeper for https://github.com/doorkeeper-gem/doorkeeper/issues/1065
Are there points in the code the reviewer needs to double check?
How do we have a test for https://gitlab.com/gitlab-org/gitlab-ce/issues/45647 ?
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Tests added for this feature/bug - Review
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Has been reviewed by Backend
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What are the relevant issue numbers?
Closes #45433 (closed), #45647 (closed)