Update mass metadata changes

[redmer]

Currently, all uncommitted changes are sent sequentially to the server.
But some metadata change endpoints allow a multitude of changes be applied directly to a bunch of assets.
Check the pyfwapi code and optimize where possible.

pyfwapi/pyfwapi/change/stateful.py

Lines 83 to 88 in 7ec52a9

	async def commit(self, *, conn: APIConnection, await_done: bool = True):
	"""Commit changes ready to commit."""
	for task in self.tasks.values():
	if task.status != "uncommitted":
	continue
	await self.commit_uncommitted(task, conn=conn)