fuzz: cover ASMapHealthCheck in connman target

src/test/fuzz/connman.cpp

@@ -158,6 +158,7 @@ FUZZ_TARGET(connman, .init = initialize_connman)
     (void)connman.GetTotalBytesSent();
     (void)connman.GetTryNewOutboundPeer();
     (void)connman.GetUseAddrmanOutgoing();
+    (void)connman.ASMapHealthCheck();
 
     connman.ClearTestNodes();
 }