Ansible-Core 2.19 contains major templating changes

[AlexCK-STFC]

Requirements.txt allows Ansible-Core 2.19:
ansible-core>=2.12

I believe this is causing multiple issues.

Redeploying from scratch, I came across azimuth-cloud/ansible-collection-terraform#25

I've now got:

[ERROR]: Task failed: Conditional result was 'None' of type 'NoneType', which evaluates to False. Conditionals must have a boolean result.

Task failed.
Origin: /home/ubuntu/azimuth/cloud-azimuth-config/.ansible/collections/ansible_collections/azimuth_cloud/azimuth_ops/roles/alertmanager_config/tasks/main.yml:2:3

1 ---
2 - name: Install Slack webhook URL secret
    ^ column 3

<<< caused by >>>

Conditional result was 'None' of type 'NoneType', which evaluates to False. Conditionals must have a boolean result.
Origin: /home/ubuntu/azimuth/cloud-azimuth-config/.ansible/collections/ansible_collections/azimuth_cloud/azimuth_ops/playbooks/deploy.yml:11:13

 9     # Configure alerting
10     - role: azimuth_cloud.azimuth_ops.alertmanager_config
11       when: >-
               ^ column 13

Broken conditionals can be temporarily allowed with the `ALLOW_BROKEN_CONDITIONALS` configuration option.

fatal: [azimuth-stfc-dev]: FAILED! => {
    "changed": false,
    "msg": "Task failed: Conditional result was 'None' of type 'NoneType', which evaluates to False. Conditionals must have a boolean result."
}

Later in the process, which is described here: https://docs.ansible.com/ansible/devel/porting_guides/porting_guide_12.html#example-implicit-boolean-conversion

Either the version should be pinned, or multiple fixes will need to be investigated. I'm pinning my local version for now rather than contributing more fixes, to azimuth-ops and other repos that make use of templating, as I'm not sure the path you want to take.