check if pgvector directory exists before running chown in CI

close index file fd only if index is not build via socket

remove unnecessary assert for external_socket_fd

update version to 0.3.1

Switch to using python through a virtual env

Release 0.2.7

Move catalog update checks into a separate ci/cd step

Release 0.2.5

Release 0.2.4

Drop old functions in update before creating new ones

Grant execute to all users in schema lantern

Release 0.2.3