The `exec` resource should warn when used without idempotence parameters.

[tuxmea]

In 2025 we discussed in Ghent (CfgMgmtCamp) that we want to make usage of exec more secury.

There have been 2 possible solutions:

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

The lint plugin is finished: https://github.com/voxpupuli/puppet-lint-exec_idempotency-check

I have now worked on a PoC (pile of crap) to check if extending the tape is possible. See OpenVoxProject/openvox#237

We should check if both are desired or if the linter is suffucient.

[TheMeier]

Open issues PRs due to the linter being enabled in modulesync https://github.com/pulls?q=is%3Aopen+is%3Apr+archived%3Afalse+user%3Avoxpupuli+label%3Aexec_idempotency