Postgres 13 end of support

[mikebell]

Background

Postgres 13 support ends on 28th February 2026

A list of effected RDS instances can be found by running:

aws rds describe-db-instances --query "DBInstances[?Engine=='postgres' && starts_with(EngineVersion, '13')].[DBInstanceIdentifier]" --output table

We need to coordinate and contact users to get them to update asap.

[timckt]

We can publish user comms earlier to inform user to update their Postgres 13 to at least 14, probably starting asap.