I have a production environment using a postgresql database that doesn't have a pgvector extension. I've deployed some functionality that requires pgvector and I figured I'd be able to add the extension. To my surprise, I was not able to do so. Thankfully I was able to revert to a stable version of a release in the meantime, but I do need pgvector and I already have data in the database that shouldn't be affected by this change. What are my options here? I see there's a template for pg with pgvector, but I think it might be too late for that. Is there any easy way for me to add the pgvector extension to my current database?