ci: add a workflow for publishing to Github pages

[mrossinek]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 10738530619

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 10733978032:	0.0%
Covered Lines:	297
Relevant Lines:	297

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💛 - Coveralls

[mrossinek]

I overlooked that the docs publishing is automatically handled upon pushes to stable branches as part of our docs.yml workflow:

qiskit-addon-utils/.github/workflows/docs.yml

Lines 54 to 59 in 77b8cac

	- name: Deploy docs
	if: ${{ github.ref == 'refs/heads/stable/0.1' }}
	uses: peaceiris/actions-gh-pages@v4
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/_build/html/