fix: fix main for fedssl

applications/fedssl/main.py

@@ -1,6 +1,6 @@
 import argparse
-from applications.fedssl.client_with_pgfed import FedSSLWithPgFedClient
-from applications.fedssl.server_with_pgfed import FedSSLWithPgFedServer
+from client_with_pgfed import FedSSLWithPgFedClient
+from server_with_pgfed import FedSSLWithPgFedServer
 
 import easyfl
 from client import FedSSLClient