feat: new source label and source url fields in records

Feature Request Template

Title (semantic)

Format: feat(record model): new source label and source url fields to record model

Description

Source label and source url fields have been added into the records models. The source url is validated using prebuilt pydantic validations httpurl.

Checklist

• The feature has been fully implemented.
• Tests for the new feature are included and passing.
• User documentation/guides have been updated (if applicable).
• Impact on existing functionality has been considered.

Related Issue(s)

Closes #