Fix broken exception message

[jan-cerny]

Fixing None shown in the following message:

ValueError: The rule 'package_ntp_removed' isn't mapped to any component! Insert the rule ID to at least one file in 'None'.

Review Hints:

Remove a rule from a component file in the /components directory, then build content

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[github-actions]

🤖 A k8s content image for this PR is available at:
ghcr.io/complianceascode/k8scontent:11842
This image was built from commit: 9dbed12

Click here to see how to deploy it

If you alread have Compliance Operator deployed:
utils/build_ds_container.py -i ghcr.io/complianceascode/k8scontent:11842

Otherwise deploy the content and operator together by checking out ComplianceAsCode/compliance-operator and:
CONTENT_IMAGE=ghcr.io/complianceascode/k8scontent:11842 make deploy-local

[codeclimate]

Code Climate has analyzed commit 9dbed12 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 0.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 59.2% (0.0% change).

View more on Code Climate.

[marcusburghardt]

Much better. E.g.:
ValueError: The rule 'audit_access_failed' isn't mapped to any component! Insert the rule ID to at least one file in '/.../content/components'.

[marcusburghardt]

Great. Thanks