Migrations: Update adapter to support callback for when a new collection is being processed

[eecavanna]

Tasks

• Add a callback parameter to the process_each_document adapter function

References

• You can see the callbacks that AdapterBase subclasses have access to today, in: adapter_base.py

  nmdc-schema/nmdc_schema/migrators/adapters/adapter_base.py

  Lines 11 to 16 in aa02810

  	def __init__(
  	self,
  	on_collection_created: Optional[Callable[[str], Any]] = None,
  	on_collection_renamed: Optional[Callable[[str, str], Any]] = None,
  	on_collection_deleted: Optional[Callable[[str], Any]] = None,
  	):

[eecavanna]

I don't remember why I wanted this to exist. Closing until I remember.