doc: align tls port types with net port types

PR-URL: nodejs#41799
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

doc/api/tls.md

@@ -1365,7 +1365,7 @@ Returns the string representation of the local IP address.
 added: v0.11.4
 -->
 
-* {number}
+* {integer}
 
 Returns the numeric representation of the local port.
 
@@ -1396,7 +1396,7 @@ Returns the string representation of the remote IP family. `'IPv4'` or `'IPv6'`.
 added: v0.11.4
 -->
 
-* {number}
+* {integer}
 
 Returns the numeric representation of the remote port. For example, `443`.