Update dependency @langchain/core to v1.1.44

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@langchain/core (source)	1.1.42 → 1.1.44

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[yegor256]

@rultor please, try to merge, since 16 checks have passed

[rultor]

@rultor please, try to merge, since 16 checks have passed

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here.

[rultor]

@rultor please, try to merge, since 16 checks have passed

@yegor256 Done! FYI, the full log is here (took me 9min).

[0crat]

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