Update DLE version in Swagger

Now we can see a very old version of Database Lab: https://postgres.ai/swagger-ui/dblab/.

Another question: Why is it called Database Lab, not Database Lab Engine?

Implementation

In the DLE repository - https://gitlab.com/postgres-ai/database-lab:

• update SwaggerUI sources
• actualize endpoints in the SwaggerUI spec
• fix build-image-swagger-latest job (use CLEAN_TAG instead of LATEST_TAG)
• add a new job to deploy dblab-swagger-ui