Added more options for deployments endpoint

[chumanfu]

As per the docs: https://docs.gitlab.com/api/deployments/#list-project-deployments I have added the following options for filtering:

• updated_after
• updated_before
• finished_after
• finished_before

I have also added the sort mode finished_at which needs to be set when filtering by finished_after and finished_before

When looking at the existing test I noticed the tests for project deployments was formatting the date incorrectly. I have updated this and updated the tests.