fix: Template contains unconditional ": Serializable" which creates wrong derive clause on data classes which have a parent as well as are serializable. (#19283)

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/Category.kt

@@ -26,7 +26,7 @@ data class Category(
     @get:Pattern(regexp="^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$")
     @Schema(example = "null", description = "")
     @get:JsonProperty("name") val name: kotlin.String? = null
-) {
+    ) {
 
 }
 

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/ModelApiResponse.kt

@@ -29,7 +29,7 @@ data class ModelApiResponse(
 
     @Schema(example = "null", description = "")
     @get:JsonProperty("message") val message: kotlin.String? = null
-) {
+    ) {
 
 }
 

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/Order.kt

@@ -43,7 +43,7 @@ data class Order(
 
     @Schema(example = "null", description = "")
     @get:JsonProperty("complete") val complete: kotlin.Boolean? = false
-) {
+    ) {
 
     /**
     * Order Status

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/Pet.kt

@@ -48,7 +48,7 @@ data class Pet(
     @Schema(example = "null", description = "pet status in the store")
     @Deprecated(message = "")
     @get:JsonProperty("status") val status: Pet.Status? = null
-) {
+    ) {
 
     /**
     * pet status in the store

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/Tag.kt

@@ -25,7 +25,7 @@ data class Tag(
 
     @Schema(example = "null", description = "")
     @get:JsonProperty("name") val name: kotlin.String? = null
-) {
+    ) {
 
 }
 

samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/model/User.kt

@@ -49,7 +49,7 @@ data class User(
 
     @Schema(example = "null", description = "User Status")
     @get:JsonProperty("userStatus") val userStatus: kotlin.Int? = null
-) {
+    ) {
 
 }