Polish contribution

See gh-28531

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/context/runner/AbstractApplicationContextRunnerTests.java

@@ -24,6 +24,7 @@
 import org.junit.jupiter.api.Test;
 
 import org.springframework.beans.factory.BeanDefinitionStoreException;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.context.annotation.UserConfigurations;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;