Added todo [skip ci]

Author: ankane

pgvector/psycopg2/register.py

@@ -5,6 +5,7 @@
 from .vector import register_vector_info
 
 
+# TODO remove default value for conn_or_curs in 0.4.0
 # TODO make globally False by default in 0.4.0
 # note: register_adapter is always global
 # TODO make arrays True by defalt in 0.4.0