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

@@ -11084,13 +11084,41 @@
       },
       "groundstation" : {
         "endpoints" : {
-          "af-south-1" : { },
-          "ap-northeast-2" : { },
-          "ap-southeast-1" : { },
-          "ap-southeast-2" : { },
-          "eu-central-1" : { },
-          "eu-north-1" : { },
-          "eu-west-1" : { },
+          "af-south-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "ap-northeast-2" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "ap-southeast-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "ap-southeast-2" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "eu-central-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "eu-north-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "eu-west-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "fips-us-east-1" : {
             "credentialScope" : {
               "region" : "us-east-1"
@@ -11112,24 +11140,47 @@
             "deprecated" : true,
             "hostname" : "groundstation-fips.us-west-2.amazonaws.com"
           },
-          "me-south-1" : { },
-          "sa-east-1" : { },
+          "me-south-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
+          "sa-east-1" : {
+            "variants" : [ {
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "us-east-1" : {
             "variants" : [ {
+              "tags" : [ "dualstack" ]
+            }, {
               "hostname" : "groundstation-fips.us-east-1.amazonaws.com",
               "tags" : [ "fips" ]
+            }, {
+              "hostname" : "groundstation-fips.us-east-1.api.aws",
+              "tags" : [ "dualstack", "fips" ]
             } ]
           },
           "us-east-2" : {
             "variants" : [ {
+              "tags" : [ "dualstack" ]
+            }, {
               "hostname" : "groundstation-fips.us-east-2.amazonaws.com",
               "tags" : [ "fips" ]
+            }, {
+              "hostname" : "groundstation-fips.us-east-2.api.aws",
+              "tags" : [ "dualstack", "fips" ]
             } ]
           },
           "us-west-2" : {
             "variants" : [ {
+              "tags" : [ "dualstack" ]
+            }, {
               "hostname" : "groundstation-fips.us-west-2.amazonaws.com",
               "tags" : [ "fips" ]
+            }, {
+              "hostname" : "groundstation-fips.us-west-2.api.aws",
+              "tags" : [ "dualstack", "fips" ]
             } ]
           }
         }