chore: update dependencies for langchain and related packages (#165)

This pull request updates dependencies across several modules to their
latest major versions, particularly for the LangChain ecosystem, and
refactors imports to match new package structures. These changes ensure
compatibility with the latest APIs and improve maintainability. The most
important changes are grouped below:

**Dependency Upgrades (LangChain Ecosystem & Related Libraries):**

* Updated `langchain`, `langchain-community`, `langchain-core`,
`langchain-openai`, `langchain-qdrant`, `langchain-ollama`,
`langchain-text-splitters`, and `langfuse` to their latest major
versions in multiple `pyproject.toml` files, ensuring compatibility with
breaking changes and new features.
[[1]](diffhunk://#diff-b19ab043535569caf9345971969d115d6515ae951a21b00a278145a28230fba1L23-R34)
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[[5]](diffhunk://#diff-dede389bcfb615c4b45cd1da7ac14cbe9535305f41f19cce09e321c91a8bb323L108-R111)
* Updated other dependencies such as `langchain-experimental`,
`python-dateutil`, and related libraries for consistency and security.
[[1]](diffhunk://#diff-9c5aeb0db77c2eec077d07ddc3b3810ae1a4a1e50ee7061fba37a46706c513fbL116-R120)
[[2]](diffhunk://#diff-dede389bcfb615c4b45cd1da7ac14cbe9535305f41f19cce09e321c91a8bb323L108-R111)

**Import Refactoring:**

* Refactored imports from `langchain.text_splitter` to
`langchain_text_splitters` in several modules to match the new package
structure.
[[1]](diffhunk://#diff-8b7c1816cb3e0a40b7965721c550eefdc184c5d914ec023e36527255613381e7L6-R6)
[[2]](diffhunk://#diff-3ee3488f9128a80b43211355c9429c33973e97c8a5d970a0c7bab21718288ec3L3-R4)
[[3]](diffhunk://#diff-9793b1081628436dd7d5a0e37abc9d79ee5e25af3f5e784f99379249809ed8dbL7-R9)
* Updated imports of prompt templates from `langchain.prompts` to
`langchain_core.prompts` in prompt template modules and tests, ensuring
proper usage of the latest API.
[[1]](diffhunk://#diff-f45d2e4f21bc9442444429d1a64091e4c50132f371b05b72374956fa02b1d966L1-R1)
[[2]](diffhunk://#diff-cc1e8ada00d928911d0ae3adef2ce660c2ac2eee979bcc40af86bf1890c0701aL1-R1)
[[3]](diffhunk://#diff-e93a1e7be5b80657d6e435a651dab98960b0d1c1e7a8672f4e3927b4cd0c3fe7L1-R1)
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[[5]](diffhunk://#diff-d3a3ed735f039fe052f75181d34b526d9fd7514a768925cf584582405fa13adfL6-L11)

These changes are necessary to keep the codebase up to date and
compatible with the latest versions of the LangChain ecosystem and its
dependencies.

---------

Co-authored-by: Andreas Klos <aklos@outlook.de>

Author: robodev-r2d2

libs/admin-api-lib/poetry.lock

@@ -113,11 +113,11 @@ python-dateutil = "^2.9.0.post0"
 tenacity = "9.1.2"
 boto3 = "^1.38.10"
 tqdm = "^4.67.1"
-langfuse = "3.6.1"
+langfuse = "^3.10.1"
 redis = "^6.0.0"
 pyyaml = "^6.0.2"
 python-multipart = "^0.0.20"
-langchain-experimental = "^0.3.4"
+langchain-experimental = "^0.4.0"
 nltk = "^3.9.2"
 starlette = ">=0.49.1"
 

libs/admin-api-lib/pyproject.toml

@@ -3,7 +3,7 @@
 from admin_api_lib.impl.api_endpoints.default_file_uploader import DefaultFileUploader
 from dependency_injector.containers import DeclarativeContainer
 from dependency_injector.providers import Configuration, List, Selector, Singleton
-from langchain.text_splitter import RecursiveCharacterTextSplitter
+from langchain_text_splitters import RecursiveCharacterTextSplitter
 from langchain_community.embeddings import OllamaEmbeddings
 from langfuse import Langfuse
 

libs/admin-api-lib/src/admin_api_lib/dependency_container.py

@@ -1,7 +1,7 @@
 """Module containing the TextChunker class."""
 
-from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_core.documents import Document
+from langchain_text_splitters import RecursiveCharacterTextSplitter
 
 from admin_api_lib.chunker.chunker import Chunker
 

libs/admin-api-lib/src/admin_api_lib/impl/chunker/text_chunker.py

@@ -4,9 +4,9 @@
 import logging
 from typing import Optional
 
-from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_core.documents import Document
 from langchain_core.runnables import Runnable, RunnableConfig, ensure_config
+from langchain_text_splitters import RecursiveCharacterTextSplitter
 from openai import APIConnectionError, APIError, APITimeoutError, RateLimitError
 
 from admin_api_lib.impl.settings.summarizer_settings import SummarizerSettings

libs/admin-api-lib/src/admin_api_lib/impl/summarizer/langchain_summarizer.py

@@ -105,10 +105,10 @@ numpy = "^2.2.5"
 docx2txt = "^0.9"
 unstructured = {extras = ["docx", "pptx"], version = "0.18.15"}
 html5lib = "^1.1"
-langchain-community = "^0.3.23"
+langchain-community = "^0.4.1"
 atlassian-python-api = "^4.0.3"
 markdownify = "^1.1.0"
-langchain-core = "0.3.77"
+langchain-core = "^1.0.7"
 camelot-py = {extras = ["cv"], version = "^1.0.0"}
 fake-useragent = "^2.2.0"
 pypdfium2 = "4.30.0"