chore: replace path of the Docker registry with SE images (#479)

Description

Replace path of the Docker registry with SE images

Related issue

#479 (comment 1218119984)

Examples

• registry.gitlab.com/postgres-ai/custom-images/extended-postgres-postgis -> registry.gitlab.com/postgres-ai/se-images/postgis
• registry.gitlab.com/postgres-ai/custom-images/extended-postgres-rds -> registry.gitlab.com/postgres-ai/se-images/rds
• registry.gitlab.com/postgres-ai/custom-images/extended-postgres-heroku -> registry.gitlab.com/postgres-ai/se-images/heroku
• registry.gitlab.com/postgres-ai/custom-images/extended-postgres-supabase -> registry.gitlab.com/postgres-ai/se-images/supabase

Checklist

• MR description has been reviewed
• MR changes are functionally tested
• MR does NOT have API/CLI changes OR there are API/CLI changes and they have been reviewed & DOCS ARE ADJUSTED (reference doc, etc)
• MR does NOT have UI changes OR there are UI changes and they have been reviewed & UX IS REVIEWED

Closes #479 (closed)