Rename Mistral AI chat model unit tests

Signed-off-by: Nicolas Krier <[email protected]>

Author: nicolaskrier

models/spring-ai-mistral-ai/src/test/java/org/springframework/ai/mistralai/MistralAiChatCompletionRequestTest.java renamed to models/spring-ai-mistral-ai/src/test/java/org/springframework/ai/mistralai/MistralAiChatModelTests.java

@@ -48,7 +48,7 @@
  * @author Nicolas Krier
  * @since 0.8.1
  */
-class MistralAiChatCompletionRequestTest {
+class MistralAiChatModelTests {
 
 	private static final String BASE_URL = "https://faked.url";