chore(deps): update dependency langchain-google-cloud-sql-pg to v0.15.0

[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
langchain-google-cloud-sql-pg (changelog)	==0.14.1 → ==0.15.0

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Release Notes

googleapis/langchain-google-cloud-sql-pg-python (langchain-google-cloud-sql-pg)

v0.15.0

Compare Source

⚠ BREAKING CHANGES

• Refactor PostgresVectorStore and PostgresEngine to depend on PGVectorstore and PGEngine respectively (#​316)

Features

• deps: Update langchain-postgres to v0.0.16 (#​366) (e773505)
• Disable support for python 3.9 and enable support for python3.13 (#​378) (b97060e)
• Update Langgraph dependency to v1 (#​379) (7a841b3)

Documentation

• Add Hybrid Search documentation (#​329) (14098ca)

Code Refactoring

• Refactor PostgresVectorStore and PostgresEngine to depend on PGVectorstore and PGEngine respectively (#​316) (7917d62)

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[dpebot]

/gcbrun