fix: rewrite prefix guard into async #2908
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Overview
Fixes deadlock situation from : #2898
Quoting:
The problem appears when you have two operations ( for example, git operations ) , both dependent on the same file lock, they will deadlock because .write() operation is blocking operation and other part that should make the progress and it's running in tokio:task:spawn_blocking , it nevers switch the context, thus not unblocking the guard