fix: Remove unnecessary dependency on jmespath

[flowerysong]

This is straightforward manipulation to do with standard Jinja features, there's no need to use a non-default library.

[SuperQ]

CC @gardar

[SuperQ]

Looks like the lint issue is unrelated. Looking into it.

[gardar]

Nice catch, LGTM!

[gardar]

@flowerysong please rebase

[flowerysong]

Test failures look unrelated.

Tests against Ansible 2.9 are failing because Ansible 2.9 reached EOL last May and is missing many collection features (like support for git dependencies in requirements.yml.)

The 2.12 failure was API rate limiting:

TASK [prometheus.prometheus.prometheus : Discover latest version] **************
fatal: [almalinux-8]: FAILED! => {"msg": "An unhandled exception occurred while running the lookup plugin 'url'. Error was a <class 'ansible.errors.AnsibleError'>, original message: Received HTTP error for https://api.github.com/repos/prometheus/prometheus/releases/latest : HTTP Error 403: rate limit exceeded. Received HTTP error for https://api.github.com/repos/prometheus/prometheus/releases/latest : HTTP Error 403: rate limit exceeded"}

[SuperQ]

Actually, the 2.9 failure is because we started fetching things from git instead of galaxy. The old version does not support fetching from git.

[flowerysong]

Actually, the 2.9 failure is because we started fetching things from git instead of galaxy. The old version does not support fetching from git.

That's what I said.

There's a decent chance that my change will also legitimately fail on 2.9; automatic generator unrolling wasn't added until 2.10. I think flatten() will take care of that, but I'm not positive.

[gardar]

2.9 test has been fixed by #37