Changelog 2023 07 05

Updated the pgvector extension to version 0.4.4. If you installed this extension previously and want to upgrade to the latest version, please refer to Update an extension version for instructions.
Added a check for available memory when creating an Hierarchical Navigable Small World (HNSW) index using the pg_embedding extension. HNSW builds indexes in memory. Insufficient memory for the index size could result in out-of-memory errors.