feat: DeepSeek: support HTTP client timeout configuration

Author: Fottas

auto-configurations/models/spring-ai-autoconfigure-model-deepseek/src/test/java/org/springframework/ai/model/deepseek/autoconfigure/DeepSeekAutoConfigurationIT.java

@@ -77,8 +77,8 @@ void generateStreaming() {
 	void generateWithCustomTimeout() {
 		new ApplicationContextRunner()
 			.withPropertyValues("spring.ai.deepseek.apiKey=" + System.getenv("DEEPSEEK_API_KEY"),
-							"spring.ai.deepseek.http-client.connect-timeout=5s",
-							"spring.ai.deepseek.http-client.read-timeout=30s")
+					"spring.ai.deepseek.http-client.connect-timeout=5s",
+					"spring.ai.deepseek.http-client.read-timeout=30s")
 			.withConfiguration(SpringAiTestAutoConfigurations.of(DeepSeekChatAutoConfiguration.class))
 			.run(context -> {
 				DeepSeekChatModel client = context.getBean(DeepSeekChatModel.class);