jakarta namespace support

[PackiarajSakkananGW]

can jakarta namespace support be added. Looks like swagger-core supports for a while

[Stephan3555]

This would be highly appreciated!

[twistedpair]

This would help upgrading to Jetty11 where the servlet namespace is jakarta.servlet.* rather than javax.servlet.*

[kopernic-pl]

... ping...
#501

[daniel-kmiecik]

As @kopernic-pl mentioned above, we've been preparing to do this in #501
We will also upgrade java version to 17