fix: added release update version (#1764)

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pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "cognee"
 
-version = "0.3.9"
+version = "0.4.0"
 description = "Cognee - is a library for enriching LLM context with a semantic layer for better understanding and reasoning."
 authors = [
     { name = "Vasilije Markovic" },