refactor!: Canonicalize request headers (!2531) · Merge requests · GitLab.org / API / client-go · GitLab

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This MR updates string header values to use their canonical forms. This was found with the help of the canonicalheader linter.

Internally, when headers are retrieved or set, they are automatically converted to their canonical form using textproto.MIMEHeader:

PRIVATE-TOKEN -> Private-Token
RateLimit-Limit -> Ratelimit-Limit

Edited Oct 08, 2025 by 🤖 GitLab Bot 🤖