docs(regen): fix javadoc return annotation

proto-google-cloud-datacatalog-v1beta1/src/main/java/com/google/cloud/datacatalog/v1beta1/Taxonomy.java

@@ -494,7 +494,7 @@ public com.google.cloud.datacatalog.v1beta1.Taxonomy.PolicyType convert(
    * repeated .google.cloud.datacatalog.v1beta1.Taxonomy.PolicyType activated_policy_types = 6 [(.google.api.field_behavior) = OPTIONAL];
    * </code>
    *
-   * @param value The activatedPolicyTypes to add.
+   * @return The count of activatedPolicyTypes.
    */
   public int getActivatedPolicyTypesCount() {
     return activatedPolicyTypes_.size();