Fixes: go-gitea/gitea#36637. `linguist-detectable` must be able to
override the config classification.
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This module is merged from https://github.com/go-gitea/git which is a Go module to access Git through shell commands. Now it's a part of gitea's main repository for easier pull request.