ci: update to Pyodide 0.26.2 and fix build script #1633

Job	Run time
Build wheels on macOS (x86_64)	17m 56s
Build wheels on macOS (arm64)	9m 26s
Build wheels on Linux (aarch64/musllinux)	0s
Build wheels for WebAssembly	8m 46s
Build wheels on Linux (x86_64)	23m 58s
Build wheels on Linux (aarch64/manylinux)	0s
Build wheels on Linux (i686)	19m 31s
Build wheels on Windows (Win32)	20m 50s
Build wheels on Windows (x64)	38m 48s
Build sdist and test extra dependencies	2m 27s
Build with sanitizers for debugging purposes	5m 34s
	2h 27m 16s

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