Deploy docs to GitHub Pages (backport #739)

[mergify]

This is an automatic backport of pull request #739 done by Mergify.
Cherry-pick of 7e860cc has failed:

On branch mergify/bp/stable/0.7/pr-739
Your branch is up to date with 'origin/stable/0.7'.

You are currently cherry-picking commit 7e860cc.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   docs/conf.py
	deleted:    tools/deploy_documentation.sh
	deleted:    tools/deploy_translatable_strings.sh
	deleted:    tools/github_poBranch_update_key.enc
	deleted:    tools/rclone.conf.enc
	modified:   tox.ini

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   .github/workflows/deploy-docs.yml

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[coveralls]

Pull Request Test Coverage Report for Build 7646768810

• 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 92.596%

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Totals
Change from base Build 7453139336:	0.0%
Covered Lines:	1876
Relevant Lines:	2026

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💛 - Coveralls

[woodsp-ibm]

The deploy-docs file ended up with a conflict as part of this backport. Possibly due to #722 not being backported as that changed the file in main. Anyway I edited the file to remove the conflict section it noted and updated the owners so it matches overall now with the same file as is on main.