chore: update the .gitignore file to include opensearch,pgvector,and myscale (#8470)

.gitignore

 docker-legacy/volumes/minio/*
 docker-legacy/volumes/milvus/*
 docker-legacy/volumes/chroma/*
+docker-legacy/volumes/opensearch/data/*
+docker-legacy/volumes/pgvectors/data/*
+docker-legacy/volumes/pgvector/data/*
 
 docker/volumes/app/storage/*
 docker/volumes/certbot/*
 docker/volumes/minio/*
 docker/volumes/milvus/*
 docker/volumes/chroma/*
+docker/volumes/opensearch/data/*
+docker/volumes/myscale/data/*
+docker/volumes/myscale/log/*
+docker/volumes/unstructured/*
+docker/volumes/pgvector/data/*
+docker/volumes/pgvecto_rs/data/*
 
 docker/nginx/conf.d/default.conf
 docker/middleware.env