Reference: https://ansible-lint.readthedocs.io/en/latest/default_rules/#var-naming
We don't really fix these, but just suppress them,
because they're like that intentionally.
We try to name variables in a way that is consistent with the
configuration key they control. If the upstream component uses
camelCase, we also need to include camelCase in the variable name.
Reference: https://ansible-lint.readthedocs.io/en/latest/default_rules/#git-latest
Our variable naming is not necessarily consistent across roles.
I've tried to follow the naming conventions of each individual role.
All new variables are suffixed with `_version`, but the prefix may be
somewhat different.
