chore(deps): update dependency langgraph to v1.0.4 (#2043)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [langgraph](https://redirect.github.com/langchain-ai/langgraph)
([source](https://redirect.github.com/langchain-ai/langgraph/tree/HEAD/libs/langgraph),
[changelog](https://redirect.github.com/langchain-ai/langgraph/releases))
| `==1.0.3` -> `==1.0.4` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/langgraph/1.0.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/langgraph/1.0.3/1.0.4?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>langchain-ai/langgraph (langgraph)</summary>

###
[`v1.0.4`](https://redirect.github.com/langchain-ai/langgraph/releases/tag/1.0.4)

[Compare
Source](https://redirect.github.com/langchain-ai/langgraph/compare/1.0.3...1.0.4)

Changes since 1.0.3

- release(langgraph): 1.0.4
([#&#8203;6502](https://redirect.github.com/langchain-ai/langgraph/issues/6502))
- chore: pop thread ID from configurable fields in remote graph
([#&#8203;6497](https://redirect.github.com/langchain-ai/langgraph/issues/6497))
- chore: clean up some refs
([#&#8203;6487](https://redirect.github.com/langchain-ai/langgraph/issues/6487))
- chore(sdk-py): Add more type checking.
([#&#8203;6479](https://redirect.github.com/langchain-ai/langgraph/issues/6479))
- fix: interrupt stream mode values
([#&#8203;6475](https://redirect.github.com/langchain-ai/langgraph/issues/6475))
- release: langgraph-prebuilt 1.0.5
([#&#8203;6473](https://redirect.github.com/langchain-ai/langgraph/issues/6473))
- refactor: separate prepare\_push\_\* functions
([#&#8203;6450](https://redirect.github.com/langchain-ai/langgraph/issues/6450))
- fix: dep warnings in prebuilt
([#&#8203;6443](https://redirect.github.com/langchain-ai/langgraph/issues/6443))
- release: prebuilt 1.0.3
([#&#8203;6441](https://redirect.github.com/langchain-ai/langgraph/issues/6441))

</details>

---

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Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>

docs/en/getting-started/quickstart/python/langchain/requirements.txt

@@ -1,5 +1,5 @@
 langchain==1.1.0
 langchain-google-vertexai==3.1.0
-langgraph==1.0.3
+langgraph==1.0.4
 toolbox-langchain==0.5.3
 pytest==9.0.1