[Feature request]: make exec more secure

[tuxmea]

Use Case

Using exec resource wthout checking idempotency is a bad pattern, as the exec gets executed every time.
Idempotency is possible by setting one of the following parameters:

• creates
• onlyif
• unless
• refreshonly

OpenVox should let users/developers know that they are using code on bad practice.

There are two was on how to achieve this:

1. a lint plugin which identifies if an exec has the idempotency parameters set (out of scope for this project)
2. let the type check if all desired parameters are set

Describe the solution you would like

The exec type should check if any of the idempotency attributes in use and print a warning (on the agent side) to inform users about this bad practice.

Describe alternatives you've considered

No response

Additional context

No response

[tuxmea]

Lint Plugin is at https://github.com/voxpupuli/puppet-lint-exec_idempotency-check