Bug (ci): trigger deploy-preview workflow for `Release PR`

[AgniveshChaubey]

Bug Details

Description

A Release PR is created/updated (e.g., #282) to track changes for a release.
The deploy-preview workflow runs only when the Release PR is created, not when it is updated.
As a result, the preview environment does not reflect the latest main branch changes after subsequent merges.

Expected Behavior

The deploy-preview workflow should trigger on every update to the Release PR.

This would allow the Release PR preview to act as a staging environment and help catch issues before it reaches production.

Good First Issue

• I believe this issue is a good first issue for new contributors.

Contribution

• I am willing to fix this bug.

[itvi-1234]

I would love to work on it