fix(server): init in ServerTestRunner and factory Jooby tests

Call server.init after test server options are finalized and before
start for integration tests that no longer rely on Jooby constructor init.

Author: arimu1

modules/jooby-test/src/main/java/io/jooby/test/JoobyExtension.java

@@ -86,6 +86,7 @@ private Jooby startApp(ExtensionContext context, JoobyTest metadata) throws Exce
       }
     } else {
       app = fromFactoryMethod(context, metadata, factoryMethod);
+      server.init(app);
       server.start(app);
     }
     ExtensionContext.Store store = getStore(context);

tests/src/test/java/io/jooby/junit/ServerTestRunner.java

@@ -106,6 +106,7 @@ public void ready(SneakyThrows.Consumer2<WebClient, WebClient> onReady) {
       if (options.isSSLEnabled()) {
         options.setSecurePort(0);
       }
+      server.init(app);
       WebClient https = null;
       try {
         MutedServer.mute(server).start(app);