Allow org.awaitility.Awaitility.* static import

Closes gh-141

Author: philwebb

spring-javaformat/spring-javaformat-checkstyle/src/main/resources/io/spring/javaformat/checkstyle/spring-checkstyle.xml

@@ -77,6 +77,7 @@
 			<property name="excludes" value="
 				io.restassured.RestAssured.*,
 				org.assertj.core.api.Assertions.*,
+				org.awaitility.Awaitility.*,
 				org.hamcrest.CoreMatchers.*,
 				org.hamcrest.Matchers.*,
 				org.junit.Assert.*,