ci: Use ansible 2.19 for fedora 42 testing; support python 3.13

[richm]

NOTE: This also requires upgrading to tox-lsr 3.11.0

Ansible 2.19 will be released soon and has some changes which will
require fixes in system roles. This adds 2.19 to our testing matrix
on fedora 42 so that we can start addressing these issues.

python 3.13 is now being used on some platforms.

Using ansible-core 2.18 requires using py311 for pylint and other
python checkers.

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[sourcery-ai]

Hey @richm - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Review instructions: all looks good
• 🟢 Testing: all looks good
• 🟢 Documentation: all looks good

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