Update approval-voting-regression-bench

The accepted divergence rate of 1/1000 is execesive and leads to false
positives especially after #4772 and
#5042, so let's increase it to 1/100
since we do have some randomness in the system and there is no point in
being that strict.

Signed-off-by: Alexandru Gheorghe <alexandru.gheorghe@parity.io>

polkadot/node/core/approval-voting/benches/approval-voting-regression-bench.rs

@@ -77,8 +77,8 @@ fn main() -> Result<(), String> {
 	// We expect no variance for received and sent
 	// but use 0.001 because we operate with floats
 	messages.extend(average_usage.check_network_usage(&[
-		("Received from peers", 52941.6071, 0.001),
-		("Sent to peers", 63810.1859, 0.001),
+		("Received from peers", 52941.6071, 0.01),
+		("Sent to peers", 63810.1859, 0.01),
 	]));
 	messages.extend(average_usage.check_cpu_usage(&[
 		("approval-distribution", 6.3912, 0.1),