Avoid (potential) infinite reconnect loops in reader module

[tswast]

Currently we always reconnect on "RST_STREAM" errors:

python-bigquery-storage/google/cloud/bigquery_storage_v1/reader.py

Lines 147 to 151 in 7e4224e

	except _STREAM_RESUMPTION_EXCEPTIONS:
	# Transient error, so reconnect to the stream.
	pass
	self._reconnect()

This may cause some infinite loops, especially if we add other errors such as UNAUTHENTICATED to the stream resumption logic to support customer issue 191460918. Pub/Sub and Firestore have already solved this with the shared BiDi (bi-directional) classes.

Resources:

• BiDi was added to google-api-core in: Move bidi to api-core google-cloud-python#6211
• _Throttle avoids infinite loops: https://github.com/googleapis/python-api-core/blob/d368c4b1a7761b30e7a004dd5f85c5b1edaf1e89/google/api_core/bidi.py#L140-L204
• Used in BiDi here: https://github.com/googleapis/python-api-core/blob/d368c4b1a7761b30e7a004dd5f85c5b1edaf1e89/google/api_core/bidi.py#L475-L477

[tswast]

BiDi classes should not be used, as read_rows is not a bi-directional streaming API.