fix: error variable was shadowed by function

[lirantal]

Description

Prior to this fix, an error stack trace would be printed due to a bug in lockfile-lint's error handling.
It happened due to the error() function shadowing the local error variable in a try/catch scope.

Types of changes

This PR fixes that undefined error.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Checklist:

• I have updated the documentation (if required).
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I added a picture of a cute animal cause it's fun