chore: clean up changelog

Author: orest-tokovenko-block

CHANGELOG.md

@@ -29,60 +29,3 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Adjusted pagination logging to avoid line length lint failures
 
-## [6.0.0] - 2025-07-03
-### Added
-- Added support for Business Metrics endpoints
-
-## [5.2.0] - 2025-06-27
-### Changed
-- Migrated from Poetry to UV for faster dependency management and improved developer experience
-- Regenerated all Pydantic models using `datamodel-codegen` with improved configuration to fix model duplication issues (e.g., `CreateVirtualTagConfigValue` instead of generic `Value2`)
-
-## [0.3.2] - 2025-04-15
-### Added
-- Custom json serialization logic for the CreateDataExport pydantic model so that groupings are serialized as a string with values separated by commas 
-
-### Fixed
-- Added more detailed error messages for Data Export methods
-
-## [0.3.1] - 2025-04-15
-### Fixed
-- Fixed bug where error classes were missing parameters in the constructor
-
-## [0.3.0] - 2025-04-07
-### Added
-- Added data export PUT and GET endpoints
-- Created new CreateCostReport model by subclassing the codegen-generated model to implement new field validation logic using Pydantic's model_validator
-
-### Changed
-- Regenerated models based on updated OpenAPI specification
-
-### Fixed
-- Fixed compatibility issue with Python 3.10 not supporting StrEnum, now using alternative library
-
-### Updated
-- Updated tests with new methods
-
-## [0.1.0] - 2025-03-11
-### Changed
-- Switched to Async + HTTPX for Pagination
-- All methods now accept only Pydantic baseclass parameters
-- Paginated methods now return a single object rather than a list (e.g., list[CostReport] -> CostReports)
-
-### Added
-- Added FolderTokenParams, CostReportTokenParams, SavedFilterTokenParams, and VirtualTagTokenParams Pydantic classes
-- Added utility functions for generating unique names and printing client details
-
-### Removed
-- Removed back off and auto retry functionality
-
-## [0.0.3] - 2025-02-24
-### Fixed
-- Fixed `get_cost_report_costs` SDK method
-
-### Added
-- Added test for `get_cost_report_costs` SDK method
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-## [0.0.1]/[0.0.2] - 2025-02-15
-### Added
-- Initial release