ci: use ANSIBLE_INJECT_FACT_VARS=false by default for testing

[richm]

Ansible 2.20 has deprecated the use of Ansible facts as variables. For
example, ansible_distribution is now deprecated in favor of
ansible_facts["distribution"]. This is due to making the default
setting INJECT_FACTS_AS_VARS=false. For now, this will create WARNING
messages, but in Ansible 2.24 it will be an error.

In order to ensure that commits and PRs conform to this, use
ANSIBLE_INJECT_FACT_VARS=false by default in our CI testing.

Update README-ostree.md if needed.

See https://docs.ansible.com/projects/ansible/latest/porting_guides/porting_guide_core_2.20.html#inject-facts-as-vars

Signed-off-by: Rich Megginson rmeggins@redhat.com

Summary by Sourcery

Set CI Ansible fact handling to use non-injected facts-by-vars for testing by default.

CI:

• Configure qemu-kvm integration workflow to run with ANSIBLE_INJECT_FACT_VARS disabled by default.
• Propagate the Ansible inject-facts-as-vars setting through the TFT workflow via SR_ANSIBLE_INJECT_FACT_VARS.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Configures CI and test infrastructure to run Ansible with ANSIBLE_INJECT_FACT_VARS/SR_ANSIBLE_INJECT_FACT_VARS disabled by default so that fact variables must be accessed via ansible_facts, aligning tests with Ansible 2.20+ behavior and surfacing deprecations early.

File-Level Changes

Change	Details	Files
Ensure GitHub Actions integration tests run Ansible with facts not injected as top-level vars.	Set ANSIBLE_INJECT_FACT_VARS to "false" in the qemu-kvm-integration-tests GitHub Actions workflow environment so all tox/Ansible runs in that job use the new behavior.	.github/workflows/qemu-kvm-integration-tests.yml
Propagate the new Ansible fact injection setting into the tft test framework environment.	Add SR_ANSIBLE_INJECT_FACT_VARS=false to the TF variable string in the tft workflow so downstream tests receive and honor the non-injected facts configuration.	.github/workflows/tft.yml

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