fix #906: prevent false-negative on check in dry-run mode

[SPR0STO]

Proposed changes

This PR resolves a false-negative failure that occurs in --check (dry-run) mode when validating environment compatibility.

Specifically, two delegated tasks:

• Extract the version of Jinja2 installed on your Ansible host
• Extract the list of Ansible collections installed on your Ansible host

use ansible.builtin.command with delegate_to: localhost and register, but do not explicitly disable check-mode.

In dry-run mode, these tasks are silently skipped, leaving the registered variables empty and causing downstream assert tasks to fail — even when the environment is valid.

This PR adds check_mode: no to both command tasks, ensuring they run in dry-run mode as well. These are harmless, read-only queries that are safe in all execution modes.

Fixes #906

Checklist

• I have read the contributing guidelines.
• I have signed the F5 Contributor License Agreement (CLA).
• If applicable, I have added Molecule tests that prove my fix is effective or that my feature works.
• If applicable, I have checked that any relevant Molecule tests pass after adding my changes.
• I have updated any relevant documentation (defaults/main/*.yml, README.md and CHANGELOG.md).

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[SPR0STO]

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