## Description
This PR resolves the blockhound callout `Blocking call!
java.io.FileInputStream#readBytes` in the /v1/actions/execute (POST) API
call when used with Postgres Plugin.
This blocking call was present in the PostgresPlugin.java
Fixes#36008
## Automation
/ok-to-test tags="@tag.Sanity"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!IMPORTANT]
> 🟣🟣🟣 Your tests are running.
> Tests running at:
<https://github.com/appsmithorg/appsmith/actions/runs/10666128697>
> Commit: 9224297c20722ebd5b2891e9e2f306f75e78ed1b
> Workflow: `PR Automation test suite`
> Tags: `@tag.Sanity`
> Spec: ``
> <hr>Mon, 02 Sep 2024 11:19:10 UTC
<!-- end of auto-generated comment: Cypress test results -->
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Chores**
- Improved the readability and conciseness of the connection pool
creation logic in the Postgres plugin, enhancing maintainability without
affecting functionality.
- Updated logging level from debug to info for better clarity on log
messages.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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