Fix pages write permission missing (#3)

<!-- Provide a general summary of your changes in the Title above -->
<!-- Apply the label "bug" or "enhacement" as applicable. -->

## Description / Motivation
<!-- Describe your changes in detail -->
<!-- Why is this change required? What problem does it solve? -->
<!-- If it fixes an open issue, please link to the issue here. -->
Another permissions issue popped up on the pages publishing task. This
time added the missing `pages: write` permission

## Testing

- [X] The Unit & Intergration tests are passing.
- [X] I have added the necesary tests to cover my changes.

## Terms
<!-- Place an X in the [] to check. -->

<!-- The Code of Conduct helps create a safe space for everyone. We
require that everyone agrees to it. -->
- [X] I agree to follow this project's [Code of
Conduct](CODE_OF_CONDUCT.md).

Co-authored-by: Ivan Lieckens <[email protected]>

.github/workflows/main.yml

@@ -64,6 +64,7 @@ jobs:
   publish-docs:
     permissions:
       id-token: write
+      pages: write
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}