fix: Fix security-group.rule.port_range_xx type

`port_range_min` and `port_range_max` of the security-groups[].rule
response has integer/null type

Change-Id: I10cfa565bede4c5f77069b6ac47a3b7ca0bc0e25

Changes are triggered by https://review.opendev.org/947815

Author: gtema

openstack_types/src/network/v2/security_group/response/create.rs

@@ -130,8 +130,8 @@ pub struct SecurityGroupRules {
     pub ethertype: Option<Ethertype>,
     pub id: Option<String>,
     pub normalized_cidr: Option<String>,
-    pub port_range_max: Option<String>,
-    pub port_range_min: Option<String>,
+    pub port_range_max: Option<i32>,
+    pub port_range_min: Option<i32>,
     pub protocol: Option<String>,
     pub remote_address_group_id: Option<String>,
     pub remote_group_id: Option<String>,

openstack_types/src/network/v2/security_group/response/get.rs

@@ -130,8 +130,8 @@ pub struct SecurityGroupRules {
     pub ethertype: Option<Ethertype>,
     pub id: Option<String>,
     pub normalized_cidr: Option<String>,
-    pub port_range_max: Option<String>,
-    pub port_range_min: Option<String>,
+    pub port_range_max: Option<i32>,
+    pub port_range_min: Option<i32>,
     pub protocol: Option<String>,
     pub remote_address_group_id: Option<String>,
     pub remote_group_id: Option<String>,

openstack_types/src/network/v2/security_group/response/list.rs

@@ -130,8 +130,8 @@ pub struct SecurityGroupRules {
     pub ethertype: Option<Ethertype>,
     pub id: Option<String>,
     pub normalized_cidr: Option<String>,
-    pub port_range_max: Option<String>,
-    pub port_range_min: Option<String>,
+    pub port_range_max: Option<i32>,
+    pub port_range_min: Option<i32>,
     pub protocol: Option<String>,
     pub remote_address_group_id: Option<String>,
     pub remote_group_id: Option<String>,

openstack_types/src/network/v2/security_group/response/set.rs

@@ -130,8 +130,8 @@ pub struct SecurityGroupRules {
     pub ethertype: Option<Ethertype>,
     pub id: Option<String>,
     pub normalized_cidr: Option<String>,
-    pub port_range_max: Option<String>,
-    pub port_range_min: Option<String>,
+    pub port_range_max: Option<i32>,
+    pub port_range_min: Option<i32>,
     pub protocol: Option<String>,
     pub remote_address_group_id: Option<String>,
     pub remote_group_id: Option<String>,