chore(engine): use extended Docker image with PostgreSQL 15 by default (#463)

Description

Use the extended Docker image with PostgreSQL 15 by default

Related issue

#463

Examples

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 #463

added FlowReady for Sprint List of tasks Priorityhigh SizeM ee techfullstack labels

requested review from @fomin.list, @NikolayS, and @vitabaks

assigned to @akartasov

approved this merge request

marked the checklist item MR changes are functionally tested as completed

marked the checklist item MR description has been reviewed as completed

mentioned in commit a76732cf

merged

mentioned in issue #479 (closed)

mentioned in commit docs@888fff94

mentioned in merge request docs!546 (merged)