We got clarification in psf/black#1667 that the new changes related to trailing commas are feature instead of a bug. Previously our suspicion was that pyproject.toml wasn't respected as we thought the changes were because of line length

On closer inspection it is more clearer and better than previous version.

Old:

    return variable_collection_schema.dump({"variables": variables, "total_entries": total_entries,})

New:

return variable_collection_schema.dump(
        {
            "variables": variables,
            "total_entries": total_entries,
        }
    )

The trailing comma looks better on the new line .

Old:

        "containerOverrides": [{"name": "hello-world-container", "command": ["echo", "hello", "world"],},],

New:

        "containerOverrides": [
            {
                "name": "hello-world-container",
                "command": ["echo", "hello", "world"],
            },
        ],

^ Add meaningful description above

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