Add new image-deployment field to the tests cases

This is a madantory field that specifies the deployment type of the
image where this test case can be executed.

The commit adds the image-deployment field for each test case, and it
currently can be a list with the following values: APT, OSTree, Any.

This commit also updates the tests files.

Signed-off-by: Luis Araujo <luis.araujo@collabora.co.uk>