Pgvector

- Added `schema` option for asyncpg

- Improved support for cursor factories with Psycopg 2

- Fixed error with asyncpg and pgvector < 0.7

- Fixed error parsing zero sparse vectors
- Fixed error with Psycopg 2 and pgvector < 0.7
- Fixed error message when `vector` type not found with Psycopg 3

- Added support for `halfvec`, `bit`, and `sparsevec` types to Django
- Added support for `halfvec`, `bit`, and `sparsevec` types to SQLAlchemy and SQLModel
- Added support for `halfvec` and `sparsevec` types to Psycopg 3
- Added support for `halfvec` and `sparsevec` types to Psycopg 2
- Added support for `halfvec` and `sparsevec` types to asyncpg
- Added support for `halfvec`, `bit`, and `sparsevec` types to Peewee
- Added `L1Distance`, `HammingDistance`, and `JaccardDistance` for Django
- Added `l1_distance`, `hamming_distance`, and `jaccard_distance` for SQLAlchemy and SQLModel
- Added `l1_distance`, `hamming_distance`, and `jaccard_distance` for Peewee

- Fixed `unexpected data beyond EOF` error