fuzz: Update the 'block' fuzz target with the rate limiter support

Signed-off-by: Bo Chen <chen.bo@intel.com>

fuzz/fuzz_targets/block.rs

@@ -95,6 +95,7 @@ fuzz_target!(|bytes| {
         2,
         256,
         SeccompAction::Allow,
+        None,
     )
     .unwrap();