chore(ci): remove GH pages action

[sthulb]

Issue number: #2502

Summary

Changes

Please provide a summary of what's being changed

Remove GH pages from GH actions. We no longer use GH pages, as we have migrated to our new docs hosting already.

User experience

Please share what the user experience looks like before and after this change

There should be no change for users, the new docs site is already the primary location.

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• Meet tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

Is this a breaking change?

RFC issue number:

Checklist:

• Migration process documented
• Implement warnings (if it can live side by side)

Acknowledgment

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[github-actions]

No related issues found. Please ensure there is an open issue related to this change to avoid significant delays or closure.

[leandrodamascena]

Approved!