Updated script.js and readme.md

[Shweyy123]

PR Description:

Added a script called duplicate_finder.js to detect duplicate records in a given ServiceNow table using GlideAggregate. The script helps developers and admins ensure data consistency efficiently.

Overview

• I have read and understood the CONTRIBUTING.md guidelines
• My pull request has a descriptive title that accurately reflects the changes
• I've created a new branch for this contribution
• My code is relevant to ServiceNow developers

Code Quality

• Tested in ServiceNow PDI
• Uses GlideAggregate efficiently
• Contains clear comments and variable naming

Repository Structure Compliance

• Placed under Core ServiceNow APIs/Server-Side Components/Duplicate Record Finder/
• Each snippet has a README.md file

Documentation

• README.md includes description, usage, and example output

Restrictions

• No XML exports
• No sensitive data

[rohi-v]

Thank you for your contribution.

Thank you for your contribution. This Pull Request contains changes that seem to be breaking or altering the existing functionality [mention specific functionality if possible]. Please provide a thorough justification for these changes, including the reasons and the impact. Also, consider discussing breaking changes in an issue before submitting a pull request to ensure alignment with the project’s goals and avoid potential conflicts. Closing this for now. Once you make additional changes, feel free to re-open this Pull Request or create a new one.