Use preserve_quotes=True for auto-fix

[NotAFile]

Right now, the ansible-lint --fix yaml reformatting does not respect the original quote style. This means that any double quotes get turned into single quotes, unnecessary quotes removed, etc. ruamel.yaml has the preserve_quotes=True option to prevent this.

While I agree that normalizing quotes this way can be handy in a lot of cases, this creates a lot of unintentional churn and huge diffs. This makes me avoid using it in existing repos.

I think instead of having this normalization on by default, with #3937, it would be preferable to have this as it's own rule with associated auto-fix.