Fix export of EXO resources with ErrorAction Stop

[FabienTschanz]

Pull Request (PR) description

This PR fixes the export of three EXO resources where the -ErrorAction Stop parameter would break the cmdlet.

This Pull Request (PR) fixes the following issues

• Fixes EXO: Some resources stopped working with latest release #6753

Task list

• Added an entry to the change log under the Unreleased section of the file CHANGELOG.md.
  Entry should say what was changed and how that affects users (if applicable), and
  reference the issue being resolved (if applicable).
• Resource parameter descriptions added/updated in the schema.mof.
• Resource documentation added/updated in README.md.
• Resource settings.json file contains all required permissions.
• Examples appropriately added/updated.
• Unit tests added/updated.
• New/changed code adheres to DSC Community Style Guidelines.

[ricmestre]

@FabienTschanz Hey! thank you for the quick fix, sure enough this fixes the issue, my wife was craving for some wine so I didn't have to time to look into it :) could you please just make sure that all 3 issues in the CHANGELOG.md are linked to the PR and not just the first one?

[FabienTschanz]

No worries, you're not supposed to be on standby for my PRs 24/7 anyways 😆