Enable Wasm BigInt. This enables WASM_BIGINT while maintaining (hypothetical) Safari 14 support
by shimming BigInt64Array and BigUint64Array if they are missing. I think the
last time we tried to enable WASM_BIGINT was before #2019 so our chances
are significantly better this time.

This will fix dynamic linking bugs, reduce code size, and improve speed.

See also my upstream PR:
https://github.com/emscripten-core/emscripten/pull/17103

- [x] Add a [CHANGELOG](https://github.com/pyodide/pyodide/blob/main/docs/project/changelog.md) entry

package:
  name: ruamel
  version: 0.17.21
source:
  url: https://files.pythonhosted.org/packages/9e/cb/938214ac358fbef7058343b3765c79a1b7ed0c366f7f992ce7ff38335652/ruamel.yaml-0.17.21-py3-none-any.whl
  sha256: 742b35d3d665023981bd6d16b3d24248ce5df75fdb4e2924e93a05c1f8b61ca7
test:
  imports:
    - ruamel
about:
  home: https://sourceforge.net/p/ruamel-yaml/code/ci/default/tree
  PyPI: https://pypi.org/project/ruamel.yaml
  summary:
    ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation
    of comments, seq/map flow style, and map key order
  license: MIT license

package:
  name: ruamel
  version: 0.17.21
source:
  url: https://files.pythonhosted.org/packages/9e/cb/938214ac358fbef7058343b3765c79a1b7ed0c366f7f992ce7ff38335652/ruamel.yaml-0.17.21-py3-none-any.whl
  sha256: 742b35d3d665023981bd6d16b3d24248ce5df75fdb4e2924e93a05c1f8b61ca7
test:
  imports:
    - ruamel
about:
  home: https://sourceforge.net/p/ruamel-yaml/code/ci/default/tree
  PyPI: https://pypi.org/project/ruamel.yaml
  summary:
    ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation
    of comments, seq/map flow style, and map key order
  license: MIT license
