Add hooks before running kuttl from operator target

Add a hook to run before calling the kuttl tests in the job variant that
runs them from the operator target (wihtout using install_yamls).

Author: cescgina

ci/playbooks/kuttl/run-kuttl-from-operator-targets.yaml

@@ -1,3 +1,8 @@
+- name: Run pre_kuttl_from_operator hooks
+  vars:
+    step: pre_kuttl_from_operator
+  ansible.builtin.import_playbook: ./hooks.yml
+
 - hosts: controller
   vars:
     project_name: "github.com/openstack-k8s-operators/{{ operator_name }}"

docs/source/usage/01_usage.md

@@ -123,6 +123,8 @@ If you want to list multiple hooks, you have to use the following parameter name
 - `post_admin_setup`: before admin setup
 - `pre_tests`: before running tests
 - `post_tests`: after running tests
+- `pre_kuttl_from_operator`: before running kuttl test when calling them from
+    the operator's make target
 
 Since we're already providing hooks as list, you may want to just add one or two hooks
 using your own environment file. Parameter structure is simple: `PREFIX_HOOKNAME: {hook struct}`