Update expectation after upstream v0.20.0 release of EPS

Author: timtebeek

src/test/java/org/openrewrite/java/testing/testng/TestNgToAssertJTest.java

@@ -165,9 +165,9 @@ void aaa(Object obj) {
               class Test {
                   void aaa(Object obj) {
                       assertThat(1).isEqualTo(1);
-                      assertThat(1).as("foo").isEqualTo(1);
+                      assertThat(1).withFailMessage("foo").isEqualTo(1);
                       assertThat(1).isNotEqualTo(2);
-                      assertThat(1).as("foo").isNotEqualTo(2);
+                      assertThat(1).withFailMessage("foo").isNotEqualTo(2);
                   }
               }
               """