* implemented missing 'delete' push webhooks

moreover created ActionDeleteBranch and ActionDeleteTag

* add CommitRepoAction tests for tag/branch creation/deletion

* fixed error where push webhook not called if is new branch or tag
removed unnecessary code

* moved prepare unit test environment into separate method to be used across unit tests

* add missing if clause in pushUpdate

Signed-off-by: David Schneiderbauer <dschneiderbauer@gmail.com>

* Fix test : make coverage -> test

* Refactor integration tests to be able to run them in parallel

* Add custom local repository temp path