fix(ci): read workflow_dispatch PR number from inputs.pr in PR auto-deploy workflow (#5380)

# Description of Changes

This pull request makes a small update to the PR auto-deploy workflow.
The change ensures that the pull request number is correctly retrieved
from the workflow dispatch payload, improving reliability when the
workflow is manually triggered.

* Changed the PR number retrieval logic in
`.github/workflows/PR-Auto-Deploy-V2.yml` to use
`context.payload.inputs.pr` instead of `process.env.INPUT_PR` for
workflow dispatch events.

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

.github/config/repo_devs.json

@@ -13,6 +13,8 @@
     "reecebrowne",
     "DarioGii",
     "ConnorYoh",
-    "EthanHealy01"
+    "EthanHealy01",
+    "jbrunton96",
+    "balazs-szucs"
   ]
 }