Fixing Kotlin sample applications

Signed-off-by: Soby Chacko <soby.chacko@broadcom.com>

kotlin/kotlin-function-callback/src/main/kotlin/com/example/kotlin_function_callback/KotlinFunctionCallbackApplication.kt

@@ -19,7 +19,7 @@ class KotlinFunctionCallbackApplication {
 			val chatClient = chatClientBuilder.build();
 			val response = chatClient
 				.prompt("What are the weather conditions in San Francisco, Tokyo, and Paris? Find the temperature in Celsius for each of the three locations.")
-				.tools("WeatherInfo")
+				.toolNames("WeatherInfo")
 				.call().chatResponse();
 
 			println("Response: $response")

kotlin/rag-with-kotlin/src/main/resources/application.properties

@@ -2,4 +2,7 @@ spring.application.name=rag-with-kotlin
 spring.ai.vectorstore.pgvector.initialize-schema=true
 spring.sql.init.mode=always
 server.port=8090
-spring.docker.compose.lifecycle-management=start_only
+spring.docker.compose.lifecycle-management=start_and_stop
+spring.docker.compose.file=kotlin/rag-with-kotlin/compose.yaml
+
+spring.ai.openai.api-key=<YOUR-OPENAI-API-KEY>