aiomysql.connect ignores server_public_key argument

[Nothing4You]

Describe the bug

aiomysql.connect() accepts the argument server_public_key

aiomysql/aiomysql/connection.py

Lines 48 to 56 in 0309e5f

	def connect(host="localhost", user=None, password="",
	db=None, port=3306, unix_socket=None,
	charset='', sql_mode=None,
	read_default_file=None, conv=decoders, use_unicode=None,
	client_flag=0, cursorclass=Cursor, init_command=None,
	connect_timeout=None, read_default_group=None,
	no_delay=None, autocommit=False, echo=False,
	local_infile=False, loop=None, ssl=None, auth_plugin='',
	program_name='', server_public_key=None):

but it is not passed on to _connect().

aiomysql Version

master as of writing, 0309e5f

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