Update endpoints model

Author: AWS SDK for Go v2 automation user

codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json

@@ -20818,6 +20818,12 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "ap-southeast-7" : {
+            "variants" : [ {
+              "hostname" : "securityhub.ap-southeast-7.api.aws",
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "ca-central-1" : {
             "variants" : [ {
               "hostname" : "securityhub.ca-central-1.api.aws",
@@ -20924,6 +20930,12 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "mx-central-1" : {
+            "variants" : [ {
+              "hostname" : "securityhub.mx-central-1.api.aws",
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "sa-east-1" : {
             "variants" : [ {
               "hostname" : "securityhub.sa-east-1.api.aws",
@@ -23448,6 +23460,7 @@
           "il-central-1" : { },
           "me-central-1" : { },
           "me-south-1" : { },
+          "mx-central-1" : { },
           "sa-east-1" : { },
           "us-east-1" : {
             "variants" : [ {