Raise invalid constraint when invalid version

What does this MR do?

Make IntervalParser raise an InvalidConstraintError when parsing the version raises an InvalidVersionError.

This change is necessary b/c validation based on a generic regular expression no longer ensures that the version is invalid.

In the gitlab backend, Continuous Vulnerability Scanning makes a distinction b/w the two types of errors.

• It recovers from invalid versions referenced in project dependencies.
• However, it lets the advisory scan job fails when the invalid version is in the affected range of versions, in the advisory.

What are the relevant issue numbers?

gitlab-org/gitlab#386070 (comment 1821312900)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for this project, if necessary
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Security reports checked/validated by reviewer