Remove the duplicated constraint for numpy in the Pyproject.toml

[tropxy]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

The constraint added to numpy here:
https://github.com/langchain-ai/langchain/blob/master/libs/langchain/pyproject.toml#L45

shall be removed as another one is already there, which allows more recent versions of numpy:
https://github.com/langchain-ai/langchain/blob/master/libs/langchain/pyproject.toml#L49

Error Message and Stack Trace (if applicable)

No response

Description

I have created a discussion thread about this, but as I had no answer about it, I am adding it here.

Please, for more details, take a look at the initial thread I have initiated here: #29047 (comment)

System Info

N/A