v0.3.0

Python 3.13.2 and Pyodide 0.28.0.dev0

• Update to Python 3.13
• Add the blosc2, ldcpy, pydap and xclim packages
• Add the numcodecs-combinators, numcodecs-observers, and zarr-any-numcodecs utility packages
• Add the numcodecs-wasm-* family of packages, see https://numcodecs-wasm.readthedocs.io/en/latest/
• Update to zarr v3. You can still manually %pip install zarr<3 if you'd prefer.
• Reduce the number of pure Python packages that are distributed by the online laboratory itself to remove constraints on their versions
• Add the jupyterlab-slideshow JupyterLab extension
• Update Pyodide and JupyterLite

Full Changelog: v0.2.1...v0.3.0