Update CI test matrix

[bollwyvl]

References

• last several merges to main failing reliably on linux pypy-3.7

Code changes

• bump top python-version to 3.10
  • continues to use 3.9 for docs build/test
• under pypy
  • bump to pypy-3.8
    • can't yet because cloudpickle uses _pickle
      • fixed by Fix import of pickle module on PYPY 3.8 (#455) cloudpipe/cloudpickle#461
  • drops windows altogether
    • funny story, it wasn't running there anyway, apparently
  • skips archive tests?
    • just do this on CI with an env var: might be a GHA issue
  • doesn't run tests under coverage
    • it's super slow, might improve in the future
• bump to nodejs version to latest LTS 16
• add filesystem cache for webpack (saves ~40s)

User-facing changes

• n/a

Backwards-incompatible changes

• n/a

[github-actions]

👈 Try it on ReadTheDocs

[jtpio]

Thanks!

[jtpio]

Looks like typedoc is built and uploaded in the lint job:

jupyterlite/.github/workflows/build.yml

Lines 83 to 89 in 9893953

	- name: Docs (typedoc)
	run: doit -n4 docs:typedoc:mystify
	- name: Upload (typedoc)
	uses: actions/upload-artifact@v2
	with:
	name: jupyterlite typedoc ${{ github.run_number }}
	path: ./docs/api/ts

Which makes the docs check flaky as these artifacts might not be available when the docs job runs.

[bollwyvl]

ah, good catch.