Upgraded Rest Assured to 4.0.0; fixes gh-1122

spring-cloud-contract-wiremock/src/test/java/org/springframework/cloud/contract/wiremock/WiremockServerRestAssuredApplicationTests.java

@@ -57,14 +57,14 @@ public class WiremockServerRestAssuredApplicationTests {
 	@Test
 	public void contextLoads() throws Exception {
 		given().port(this.port).when().get("/resource").then().assertThat()
-				.statusCode(is(200)).content(equalTo("Hello World"));
+				.statusCode(is(200)).body(equalTo("Hello World"));
 	}
 
 	@Test
 	public void statusIsMaintained() throws Exception {
 		given(this.documentationSpec.port(this.port)).filter(document("status")).when()
 				.get("/status").then().assertThat().statusCode(is(202))
-				.content(equalTo("Hello World"));
+				.body(equalTo("Hello World"));
 	}
 
 	@Configuration