Remove mongoengine version restriction

[coderabbitai]

Description

Remove the version restriction for mongoengine dependency: 'mongoengine>=0.29.0,<0.30.0' to allow newer versions.

Context

• PR: Integration/fast agave #150
• Comment: Integration/fast agave #150 (comment)

Requirements

• This change requires careful testing to ensure compatibility with newer versions of mongoengine
• Test with the latest version of mongoengine
• Verify all mongoengine features used in the codebase work correctly
• Run the full test suite with different mongoengine versions

Tasks

• Remove version restriction
• Test with latest mongoengine version
• Run full test suite
• Document any breaking changes or incompatibilities found