Remove pure Python packages from constraints (and distribution)

[juntyr]

• asciitree: Publish wheels? mbr/asciitree#18
• covjsonkit: Publish wheel to PyPi ecmwf/covjsonkit#68
• earthkit-data: decide on pyfdb dependency support
  • the error message is nicer if pyfdb is not installed at all than if the FDB5 library is missing
  • could mock pyfdb using micropip.add_mock_package("pyfdb", "0.1.1", modules={"pyfdb": "raise ModuleNotFoundError('pyfdb')"}), but the error message would still not be great
  • since supporting pyfdb is currently not possible, the missing library error is the best we can do
• earthkit-regrid: replace patch with a default config file: Cache configuration without threads ecmwf/earthkit-regrid#64
• ecmwf-api-client: Publish wheels to PyPi ecmwf/ecmwf-api-client#23
• ecmwf-opendata: Publish wheels to PyPi ecmwf/ecmwf-opendata#62
• filelock: Support fcntl check on Emscripten tox-dev/filelock#398
• findlibs: upgrade from v0.0.5 to v0.1.0: Fix ctypes.util.find_library usage ecmwf/findlibs#16
• fsspec: upstream patch, though this is blocked on JSPI becoming a standard
• gribscan: remove need for the patch, will likely still be non-pure though (to package the shared lib) AECCodec usage inside gribscan gribscan/gribscan#61
• hda: Publish wheels to PyPi ecmwf/hda#34
• ipython: unlikely until we can insert runtime patches in a different way Add bootstrapCode config option jupyterlite/pyodide-kernel#172
• jupyterlite-cors: private implementation detail
• jupyterlite-preload: private implementation detail
• ldcpy: Remove nodejs dependency in requirements.txt NCAR/ldcpy#348
• micropip: would need to inject into the lockfile before there is access to micropip
• multidict: optional C extension for speed, could use the pure Python version
• multiurl: Publish wheel to PyPi ecmwf/multiurl#3
• packaging: Add compatibility for Pyodide-tagged wheels  pypa/packaging#804
• pdbufr: upgrade from v0.11.0 to v0.12.2
• pyicon-diagnostics: https://gitlab.dkrz.de/m300602/pyicon/-/issues/14
• pyodc: needs to be patched to exlude codc, wheel published since v1.5.0, 32bit build support ecmwf/odc#27
  • from v1.6.0, the package now depends on the odclib and eckitlib packages, which include the prebuilt shared library dependencies
  • earthkit-data's check for codc vs pyodc also works if codc is technically available even though the odccore library is missing
  • odclib as an optional dependency ecmwf/pyodc#38
• pyodide-http: unlikely, since the patch depends on jupyterlite-cors
• yarl: optional C extension for speed, could use the pure Python version
• zarr: upstream patch, though this is blocked on JSPI becoming a standard