Token-Permissions & Pinned-Dependencies (#2586)

# Description

Please provide a summary of the changes, including relevant motivation
and context.

Closes #(issue_number)

## Checklist

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have performed a self-review of my own code
- [ ] I have attached images of the change if it is UI based
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [ ] My changes generate no new warnings
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

.github/workflows/PR-Demo-Comment.yml

@@ -4,9 +4,15 @@ on:
   issue_comment:
     types: [created]
 
+permissions:
+  contents: read
+
 jobs:
   check-comment:
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+      issues: read
     if: |
       github.event.issue.pull_request &&
       (