Ansible-core devel: adds support for Python 3.14, drops support for Python 3.8; also AZP's azure-pipelines-test-container got updated

[felixfontein]

Some PRs have been merged to ansible-core’s devel branch that affect collection CI:

• ansible-core now supports Python 3.14, and no longer supports Python 3.8: Add support for Python 3.14 and drop Python 3.8 by mattclay · Pull Request #85576 · ansible/ansible · GitHub
• If your collection uses AZP for CI, note that there’s a new azure-pipelines-test-container (see resources in .azure-pipelines/azure-pipelines.yml): Update azure-pipelines-test-container by mattclay · Pull Request #85578 · ansible/ansible · GitHub

[felixfontein]

See also Azure Pipelines Test Container Update.