🐛(backend) race condition create doc

When 2 docs are created almost at the same time,
the second one will fail because the first one.
We get a unicity error on the path key already
used ("impress_document_path_key").
To fix this issue, we will lock the table the
time to create the document, the next query will
wait for the lock to be released.

CHANGELOG.md

@@ -145,6 +145,10 @@ and this project adheres to
 - 🐛(email) invitation emails in receivers language
 
 
+## Fixed
+
+- 🐛(backend) race condition create doc #633
+
 ## [2.2.0] - 2025-02-10
 
 ## Added