Assert fuel conditionally

When the `experimental_event_loop` feature is enabled, a bit more work
is done when executing JS code, therefore there's more fuel usage
reported in some tests.

crates/cli/tests/integration_test.rs

@@ -96,7 +96,11 @@ fn test_logging() -> Result<()> {
         "hello world from console.log\nhello world from console.error\n",
         logs.as_str(),
     );
-    assert_fuel_consumed_within_threshold(34169, fuel_consumed);
+    if cfg!(feature = "experimental_event_loop") {
+        assert_fuel_consumed_within_threshold(39602, fuel_consumed);
+    } else {
+        assert_fuel_consumed_within_threshold(34169, fuel_consumed);
+    }
     Ok(())
 }