Let clippy complain if the # of arguments grows out of hand

The # of fns with large > of arguments is growing fast\
(record is new in event_processor)

Calls with >7 arguments in consensus:
https://gist.github.com/huitseeker/ec8d79f88cbcbacde5e3a21a6b207358

Closes: aptos-labs#1033
Approved by: bmwill

clippy.toml

@@ -3,4 +3,4 @@ cognitive-complexity-threshold = 100
 # types are used for safety encoding
 type-complexity-threshold = 10000
 # manipulating complex states machines in consensus
-too-many-arguments-threshold = 15
+too-many-arguments-threshold = 13