PushBuilder tck test failures

[janbartel]

10.0.x
serverPushCookieTest:
https://github.com/eclipse-ee4j/jakartaee-tck/blob/8.0.2/src/com/sun/ts/tests/servlet/spec/serverpush/TestServlet4.java
Fails because jetty does not copy Set-Cookie headers from the response to Cookie headers on the PushBuilder

serverPushInitTest:
https://github.com/eclipse-ee4j/jakartaee-tck/blob/8.0.2/src/com/sun/ts/tests/servlet/spec/serverpush/TestServlet2.java
Fails because jetty does not copy Authorization header from the request to the PushBuilder

serverPushNegativeTest:
https://github.com/eclipse-ee4j/jakartaee-tck/blob/8.0.2/src/com/sun/ts/tests/servlet/spec/serverpush/TestServlet7.java
Fails because:

NullPointerException should be thrown if the argument of method() is null
IllegalArgumentException should be thrown if set method "" to be used for the push
IllegalArgumentException should be thrown if set method "POST" to be used for the push
IllegalArgumentException should be thrown if set method "PUT" to be used for the push
IllegalArgumentException should be thrown if set method "DELETE" to be used for the push
IllegalArgumentException should be thrown if set method "CONNECT" to be used for the push
IllegalArgumentException should be thrown if set method "OPTIONS" to be used for the push
IllegalArgumentException should be thrown if set method "TRACE" to be used for the push