* chore(deps): upgrade psycopg packages to version 3.3.0
* chore: update Python version to 3.12.x in CI workflow
* refactor: clean up imports and improve code formatting across multiple files
* feat: implement flexible data export utility with CSV, JSON, and XLSX support
- Introduced Exporter class for handling various data formats.
- Added formatters for CSV, JSON, and XLSX exports.
- Created schemas for defining export fields and their transformations.
- Implemented IssueExportSchema for exporting issue data with nested attributes.
- Enhanced issue export task to utilize the new exporter system for better data handling.
* feat: enhance issue export functionality with new relations and context handling
- Updated issue export task to utilize new IssueRelation model for better relationship management.
- Refactored Exporter class to accept QuerySets directly, improving performance and flexibility.
- Enhanced IssueExportSchema to include parent issues and relations in the export.
- Improved documentation for exporting multiple projects and filtering fields during export.
* feat: enhance export functionality with field filtering and context support
- Updated Exporter class to merge fields into options for formatting.
- Modified formatters to filter fields based on specified options.
- Enhanced ExportSchema to support optional field selection during serialization.
- Improved documentation for the serialize method to clarify field filtering capabilities.
* fixed type
