fix: Langfuse version limit (#923)

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## Description
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## DCO Affirmation
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---------

Co-authored-by: Igor Ilic <igorilic03@gmail.com>

poetry.lock

@@ -11988,4 +11988,4 @@ weaviate = ["weaviate-client"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<=3.13"
-content-hash = "15b319ff8dbe5bd88e41ead93f4e9140b2b7d86d57a707682dd3a308e78ef245"
+content-hash = "870786642a6bdb2aa7468332b1242207f80fc5b7aee04a973fc843ec8c7867a9"

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "cognee"
-version = "0.1.41"
+version = "0.1.42"
 description = "Cognee - is a library for enriching LLM context with a semantic layer for better understanding and reasoning."
 authors = [
     { name = "Vasilije Markovic" },
@@ -35,7 +35,7 @@ dependencies = [
     "tiktoken<=0.9.0",
     "litellm>=1.57.4",
     "instructor==1.7.2",
-    "langfuse>=2.32.0",
+    "langfuse>=2.32.0,<3",
     "filetype>=1.2.0",
     "aiohttp>=3.11.14",
     "aiofiles>=23.2.1",