chore: regenerate domains client (googleapis#29562)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-java-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

clients/google-api-services-domains/v1alpha2/2.0.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-domains</artifactId>
-      <version>v1alpha2-rev20250225-2.0.0</version>
+      <version>v1alpha2-rev20250918-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-domains:v1alpha2-rev20250225-2.0.0'
+  implementation 'com.google.apis:google-api-services-domains:v1alpha2-rev20250918-2.0.0'
 }
 ```
 

clients/google-api-services-domains/v1alpha2/2.0.0/com/google/api/services/domains/v1alpha2/CloudDomains.java

@@ -444,6 +444,29 @@ public List setName(java.lang.String name) {
           return this;
         }
 
+        /**
+         * Optional. Unless explicitly documented otherwise, don't use this unsupported field which
+         * is primarily intended for internal usage.
+         */
+        @com.google.api.client.util.Key
+        private java.util.List<java.lang.String> extraLocationTypes;
+
+        /** Optional. Unless explicitly documented otherwise, don't use this unsupported field which is
+       primarily intended for internal usage.
+         */
+        public java.util.List<java.lang.String> getExtraLocationTypes() {
+          return extraLocationTypes;
+        }
+
+        /**
+         * Optional. Unless explicitly documented otherwise, don't use this unsupported field which
+         * is primarily intended for internal usage.
+         */
+        public List setExtraLocationTypes(java.util.List<java.lang.String> extraLocationTypes) {
+          this.extraLocationTypes = extraLocationTypes;
+          return this;
+        }
+
         /**
          * A filter to narrow down results to a preferred subset. The filtering language accepts
          * strings like `"displayName=tokyo"`, and is documented in more detail in