Fix non-matching defaults in docs (#5446) (#5451)

* Allow to pass options as lookup options.

* Adjust tests.

* Fix non-matching defaults.

(cherry picked from commit a978bff2c7)

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/modules/cloud/profitbricks/profitbricks.py

@@ -38,6 +38,7 @@ options:
       - Public SSH keys allowing access to the virtual machine.
     type: list
     elements: str
+    default: []
   datacenter:
     description:
       - The datacenter to provision this virtual machine.
@@ -74,6 +75,7 @@ options:
       - list of instance ids, currently only used when state='absent' to remove instances.
     type: list
     elements: str
+    default: []
   count:
     description:
       - The number of virtual machines to create.