Update pyodide to 0.25.0

[samdobson]

I needed a WASM build for the latest stable release of pyodide. Sharing the changes I made to achieve this in case helpful.

Pyodide v0.25.0 changelog

[codspeed-hq]

CodSpeed Performance Report

Merging #1199 will degrade performances by 16.82%

_{Comparing samdobson:pyodide-upgrade-0.25.0 (e57dd72) with main (ea443ba)}

Summary

❌ 1 regressions
✅ 147 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	samdobson:pyodide-upgrade-0.25.0	Change
❌	test_small_class_core_dict	32 µs	38.5 µs	-16.82%

[davidhewitt]

Thanks, looks good to me!

[samuelcolvin]

This broke the executable docs examples which is the primary purpose of the wasm build, see samuelcolvin/mkdocs-run-code@1ef955d for the fix.

The problem is that https://github.com/samuelcolvin/mkdocs-run-code has to know (or guess at) the platform, e.g. emscripten_3_1_32_wasm32 or emscripten_3_1_46_wasm32.

In future if we change the emscripten version, we should update there too.