Move main to version 6.0

* Upgrade to the latest dependencies
* Migrate samples to `jakarta` namespace
* Rework `cafe-scripted` to RSocket instead of already removed RMI
* Migrate JMS samples to Apache Artemis for Jakarta EE 9
* Disables mails tests since there is a requirement to migrate to Greenmail for Jakarta EE 9 support
* Rework `generatePom` task to a new `maven-publish` plugin style

basic/jdbc/src/main/resources/setup-tables.sql

@@ -1,5 +1,5 @@
 create table IF NOT EXISTS USERS(USERNAME varchar(100),PASSWORD varchar(100), EMAIL varchar(100));
-create table IF NOT EXISTS Person(id integer identity primary key , name varchar(100), gender varchar(1), dateOfBirth date);
+create table IF NOT EXISTS Person(id int auto_increment primary key , name varchar(100), gender varchar(1), dateOfBirth date);
 INSERT INTO USERS(USERNAME, PASSWORD, EMAIL) VALUES ('a', 'secret', 'spring-integration@awesome.com');
 INSERT INTO USERS(USERNAME, PASSWORD, EMAIL) VALUES ('b', 's3cr3t', 'spring@rocks.com');
 INSERT INTO USERS(USERNAME, PASSWORD, EMAIL) VALUES ('foo', 'bar', 'foo@bar.de');