Update black to 22.6.0

[aucampia]

Summary of changes

Update black to 22.6.0 in all places where the version is specified to ensure we are using the latest version.

Checklist

• Checked that there aren't other open pull requests for
  the same change.
• Checked that all tests and type checking passes.
• For changes that have a potential impact on users of this project:
  • Updated relevant documentation to avoid inaccuracies.
• Considered granting push permissions to the PR branch,
  so maintainers can fix minor issues and keep your PR up to date.

[coveralls]

Coverage remained the same at 90.224% when pulling 84186ac on aucampia:iwana-20220713T1208-update_black into 7aba79a on RDFLib:master.

[ghost]

straightforward, good.