chore: move the rts.conf code to shell file (#38859)

## Description
> [!TIP]  
> Moving the `rts.conf` running code to shell file for more
extensibility.

Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags="@tag.Sanity"

### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results  -->
> [!TIP]
> 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/13004107300>
> Commit: b8af6b5
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=13004107300&attempt=2"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Sanity`
> Spec:
> <hr>Tue, 28 Jan 2025 05:59:53 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

- **Deployment**
- Added a new shell script (`run-rts.sh`) to manage the execution of the
Node.js application
- Updated supervisord configuration to use the new shell script for
running the application

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Nilesh Sarupriya <20905988+nsarupr@users.noreply.github.com>

deploy/docker/fs/opt/appsmith/run-rts.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+exec node /opt/appsmith/rts/bundle/server.js

deploy/docker/fs/opt/appsmith/templates/supervisord/application_process/rts.conf

@@ -1,6 +1,5 @@
 [program:rts]
-directory=/opt/appsmith/rts/bundle
-command=/opt/appsmith/run-with-env.sh node server.js
+command=/opt/appsmith/run-with-env.sh /opt/appsmith/run-rts.sh
 autorestart=true
 autostart=true
 priority=15