[Kotlin-spring] add springdoc config (#12377)

* Adding Springdoc config to Kotlin-Spring

* Updating relevant samples

* Updating unrelated samples

samples/server/petstore/kotlin-springboot-delegate/.openapi-generator/FILES

@@ -4,6 +4,7 @@ pom.xml
 settings.gradle
 src/main/kotlin/org/openapitools/Application.kt
 src/main/kotlin/org/openapitools/HomeController.kt
+src/main/kotlin/org/openapitools/SpringDocConfiguration.kt
 src/main/kotlin/org/openapitools/api/ApiUtil.kt
 src/main/kotlin/org/openapitools/api/Exceptions.kt
 src/main/kotlin/org/openapitools/api/PetApi.kt

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

@@ -0,0 +1,43 @@
+package org.openapitools
+
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+import io.swagger.v3.oas.models.OpenAPI
+import io.swagger.v3.oas.models.info.Info
+import io.swagger.v3.oas.models.info.Contact
+import io.swagger.v3.oas.models.info.License
+import io.swagger.v3.oas.models.Components
+import io.swagger.v3.oas.models.security.SecurityScheme
+
+@jakarta.annotation.Generated(value = ["org.openapitools.codegen.languages.KotlinSpringServerCodegen"])
+@Configuration
+class SpringDocConfiguration {
+
+    @Bean
+    fun apiInfo(): OpenAPI {
+        return OpenAPI()
+            .info(
+                Info()
+                    .title("OpenAPI Petstore")
+                    .description("This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.")
+                    .license(
+                        License()
+                            .name("Apache-2.0")
+                            .url("https://www.apache.org/licenses/LICENSE-2.0.html")
+                    )
+                    .version("1.0.0")
+            )
+            .components(
+                Components()
+                    .addSecuritySchemes("api_key", SecurityScheme()
+                        .type(SecurityScheme.Type.APIKEY)
+                        .`in`(SecurityScheme.In.HEADER)
+                        .name("api_key")
+                    )
+                    .addSecuritySchemes("petstore_auth", SecurityScheme()
+                        .type(SecurityScheme.Type.OAUTH2)
+                    )
+            )
+    }
+}