added changelog

Author: evertlammerts

CHANGELOG.md

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+# Changelog
+
+## v1.4.1
+**DuckDB Core**: v1.4.1
+
+### Bug Fixes
+- **ADBC Driver**: Fixed ADBC driver implementation (#81)
+- **SQLAlchemy compatibility**: Added `__hash__` method overload (#61)
+- **Error Handling**: Reset PyErr before throwing Python exceptions (#69)
+- **Polars Lazyframes**: Fixed Polars expression pushdown (#102)
+
+### Code Quality Improvements & Developer Experience
+- **MyPy Support**: MyPy is functional again and better integrated with the dev workflow
+- **Stubs**: Re-created and manually curated stubs for the binary extension
+- **Type Shadowing**: Deprecated `typing` and `functional` modules
+- **Linting & Formatting**: Comprehensive code quality improvements with Ruff
+- **Type Annotations**: Added missing overloads and improved type coverage
+- **Pre-commit Integration**: Added ruff, clang-format, cmake-format and mypy configs
+- **CI/CD**: Added code quality workflow