Change FreeSWITCH compile to 1.10.3

Compile FreeSWITCH 1.10.3 compile works with Ubuntu 20.04 LTS

ubuntu/resources/config.sh

@@ -9,7 +9,7 @@ system_branch=master            # master, stable
 switch_branch=stable            # master, stable
 switch_source=true              # true or false
 switch_package=false            # true or false
-switch_version=1.10.2           # only for source
+switch_version=1.10.3           # only for source
 switch_tls=true                 # true or false
 
 # Database Settings