[BUGFIX] Allow cloning of the QueryBuilder

In order to be able to implement pagination
it has to be possible to clone QueryBuilder.

Doctrine query builder already supports cloning,
so it's just about allowing it in our wrapper.

Resolves: #81822
Releases: master, 8.7
Change-Id: I059bdc51d1181cac08a3d9f30de174b025c6e89d
Reviewed-on: https://review.typo3.org/53424


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wolfgang Klinger <wolfgang@wazum.com>
Tested-by: Wolfgang Klinger <wolfgang@wazum.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>