Change default TLS option to 1.3

Author: MWASoftware

src/IdSecOpenSSLOptions.pas

@@ -59,7 +59,7 @@ interface
   TIdSecVerifyModeSet = set of TIdSecVerifyMode;
 
 const
-  DEF_SSLVERSION = sslvTLSv1_2;
+  DEF_SSLVERSION = sslvTLSv1_3;
   DEF_SSLVERSIONS = [sslvTLSv1_2,sslvTLSv1_3];
   MAX_SSLVERSION = sslvTLSv1_3;