Build History for branch/shon/improve-parse-errors-in-lint

Improve parse errors in linting check We had an error recently in CI that was tricky to figure out because it was unclear what kind of error it was (e.g., due to parsing versions or bad format or something else), and which position it was arising from in the file. This improvement reuses `opam-format`'s error reporting logic to give a more useful errors messages, that includes the position of the error.