Update IT to work with latest Pebble image

acme4j-it/src/test/java/org/shredzone/acme4j/it/pebble/SessionIT.java

@@ -50,7 +50,8 @@ public class SessionIT extends PebbleITBase {
         assertThat(meta.getWebsite(), is(nullValue()));
         assertThat(meta.getCaaIdentities(), is(empty()));
         assertThat(meta.getJSON().toString(), sameJSONAs("{"
-                        + "'termsOfService': 'data:text/plain,Do%20what%20thou%20wilt'"
+                        + "'termsOfService': 'data:text/plain,Do%20what%20thou%20wilt',"
+                        + "'externalAccountRequired': false"
                         + "}"));
     }