Fix error message for duplicated properties

[dirkkul]

What's being changed:

Old error was confusing

-		return fmt.Errorf("class %q: conflict for property %q: already in use or provided multiple times", property.Name, className)
+		return fmt.Errorf("class %q: conflict for collection %q: property %q already in use or provided multiple times", property.Name, className, strings.ToLower(property.Name))

Review checklist

• Documentation has been updated, if necessary. Link to changed documentation:
• Chaos pipeline run or not necessary. Link to pipeline:
• All new code is covered by tests where it is reasonable.
• Performance tests have been run or not necessary.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud