## Description
PR to update the version references for postgres. This will help us in
keeping the diff minimum between release and pg branch as we will be
upgrading the postgres version to 15 on pg branch.
## Automation
/ok-to-test tags=""
### 🔍 Cypress test results
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> [!CAUTION]
> If you modify the content in this section, you are likely to disrupt
the CI result for your PR.
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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [x] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Chores**
- Updated Docker scripts to use a generic placeholder for PostgreSQL
version, enhancing flexibility and future-proofing the setup.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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