ble.pybricks: fix missed rename of StatusFlag

We missed a rename in the doc string,

Author: dlech

pybricksdev/ble/pybricks.py

@@ -66,7 +66,7 @@ class Event(IntEnum):
     """Status report.
 
     The payload is a 32-bit little-endian unsigned integer containing
-    :class:`Status` flags.
+    :class:`StatusFlag` flags.
 
     .. availability:: Since Pybricks protocol v1.0.0.
     """