test: ensure role gathers the facts it uses by having test clear_facts before include_role

[richm]

The role gathers the facts it uses. For example, if the user uses
ANSIBLE_GATHERING=explicit, the role uses the setup module with the
facts and subsets it requires.

This change allows us to test this. Before every role invocation, the test
will use meta: clear_facts so that the role starts with no facts.

Create a task file tests/tasks/run_role_with_clear_facts.yml to do the tasks
to clear the facts and run the role. Note that this means we don't need to
use gather_facts for the tests.

Some vars defined using ansible_facts have been changed to be defined with
set_fact instead. This is because of the fact that vars are lazily
evaluated - the var might be referenced when the facts have been cleared, and
will issue an error like ansible_facts["distribution"] is undefined. This is
typically done for blocks that have a when condition that uses ansible_facts
and the block has a role invocation using run_role_with_clear_facts.yml
These have been rewritten to define the when condition using set_fact. This
is because the when condition is evaluated every time a task is invoked in the
block, and if the facts are cleared, this will raise an undefined variable error.

[sourcery-ai]

Reviewer's Guide

Refactors trustee_client role tests to run the role via a shared task file that clears Ansible facts before each invocation, ensuring the role gathers its own required facts and simplifying test playbooks.

File-Level Changes

Change	Details	Files
Introduce a shared task helper to clear facts then run the trustee_client role, with optional failure handling semantics mirroring include_role parameters.	Create tests/tasks/run_role_with_clear_facts.yml that first runs meta: clear_facts before including the linux-system-roles.trustee_client role. Support __sr_tasks_from, __sr_public, and __sr_failed_when variables to mimic include_role tasks_from/public/failed_when behavior. Implement a block/rescue pattern to ignore role failures when __sr_failed_when is explicitly set to false, while running the role normally otherwise.	tests/tasks/run_role_with_clear_facts.yml
Update existing trustee_client tests to use the new helper task file instead of direct role inclusion and remove explicit gather_facts settings.	Replace roles: linux-system-roles.trustee_client with an include_tasks call to tasks/run_role_with_clear_facts.yml, passing __sr_public: true where needed. Switch tests that previously used include_role for trustee_client to instead include the shared run_role_with_clear_facts.yml helper. Remove explicit gather_facts declarations from test playbooks, relying on the helper to manage fact state via meta: clear_facts.	tests/tests_kbs_config.yml tests/tests_default.yml tests/tests_secret_registration_client.yml tests/tests_encrypt_disk.yml tests/tests_trustee_gc_disabled.yml tests/tests_include_vars_from_parent.yml

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[sourcery-ai]

Hey - I've left some high level feedback:

• In several test playbooks you removed gather_facts: false from the play while adding run_role_with_clear_facts.yml; since the play-level default is gather_facts: true, this now does an unnecessary initial fact gathering that is immediately cleared—consider restoring gather_facts: false on those plays to match the description and avoid redundant work.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- In several test playbooks you removed `gather_facts: false` from the play while adding `run_role_with_clear_facts.yml`; since the play-level default is `gather_facts: true`, this now does an unnecessary initial fact gathering that is immediately cleared—consider restoring `gather_facts: false` on those plays to match the description and avoid redundant work.

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[richm]

[citest]

[richm]

[citest]