Fix memory leak

```
Direct leak of 12 byte(s) in 1 object(s) allocated from:
    #0 0x55779e1a46ff in malloc (/home/ivan/svnrepos/nDPI/example/ndpiReader+0x8706ff) (BuildId: 14c2fc626744710d49d652ea1c5bbb24a8cbab4f)
    ntop#1 0x55779e2120c7 in ndpi_malloc_wrapper /home/ivan/svnrepos/nDPI/example/ndpiReader.c:298:10
    ntop#2 0x55779e5fa215 in ndpi_malloc /home/ivan/svnrepos/nDPI/src/lib/ndpi_memory.c:60:25
    ntop#3 0x55779e5fa500 in ndpi_strdup /home/ivan/svnrepos/nDPI/src/lib/ndpi_memory.c:113:13
    ntop#4 0x55779e42153c in processClientServerHello /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:2554:46
    ntop#5 0x55779e4359a1 in processTLSBlock /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:908:5
    ntop#6 0x55779e432de7 in ndpi_search_tls_tcp /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:1097:2
    ntop#7 0x55779e4133f9 in ndpi_search_tls_wrapper /home/ivan/svnrepos/nDPI/src/lib/protocols/tls.c:2913:5
```

Found by oss-fuzz
See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=67250

src/lib/ndpi_main.c

@@ -7413,7 +7413,7 @@ static void ndpi_reconcile_protocols(struct ndpi_detection_module_struct *ndpi_s
       }
     } else if(flow->guessed_protocol_id_by_ip == NDPI_PROTOCOL_TELEGRAM) {
 	ndpi_int_change_protocol(ndpi_str, flow,
-				 flow->guessed_protocol_id_by_ip, flow->detected_protocol_stack[1],
+				 flow->guessed_protocol_id_by_ip, flow->detected_protocol_stack[0],
 				 NDPI_CONFIDENCE_DPI_PARTIAL);	
       }
     break;

src/lib/protocols/tls.c

@@ -2615,7 +2615,7 @@ int processClientServerHello(struct ndpi_detection_module_struct *ndpi_struct,
 		  }
 
 #ifdef DEBUG_TLS
-		  printf("Client TLS [SUPPORTED_VERSIONS: %s]\n", ja.client.supported_versions_str);
+		  printf("Client TLS [SUPPORTED_VERSIONS: %s]\n", version_str);
 #endif
 
 		  if(flow->protos.tls_quic.tls_supported_versions == NULL)