fix: migrate.py issues with the new scheduler

[imilinovic]

Description

Each batch run inside the migrate.py module could be called from a different thread (due to new scheduler) which would cause it to fail due to relying on thread id.

Pull request type

• Bugfix
• Algorithm/Module
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

Related issues

closes #712

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Reviewer checklist (the reviewer checks this part)

Module/Algorithm

• Core algorithm/module implementation
• Query module implementation
• Tests provided (unit / e2e)
• Code documentation
• README short description

Documentation checklist

• Add the documentation label tag
• Add the bug / feature label tag
• Add the milestone for which this feature is intended
  • If not known, set for a later milestone
• Write a release note, including added/changed clauses
  • Fix an issue where the migrate module would fail if returning more than 1000 results. #711
• Link the documentation PR here
  • [Documentation PR link]

[sonarqubecloud]

Quality Gate passed

Issues
10 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud