Add `wasm32` support to the rust sdk (updated) #20287

Job	Run time
Test spacetimedb-update flow (aarch64-apple-darwin)	1m 52s
Check CI command docs	1m 1s
Check CLI docs	3m 32s
Test spacetimedb-update flow (x86_64-unknown-linux-gnu)	1m 25s
Test spacetimedb-update flow (x86_64-pc-windows-msvc)	8m 33s
Lints	3m 6s
Check for Python smoketest edits	11s
Verify global.json files are symlinks	1m 7s
Build and test wasm bindings	6m 22s
Test spacetimedb-update flow (aarch64-unknown-linux-gnu)	49s
Check smoketests/mod.rs is complete	11m 52s
Verify LLM benchmark is up to date	0s
Unreal Engine Tests	0s
Check that packages are publishable	28s
Smoketests (${{ matrix.name }})	0s
unity-testsuite	0s
Internal Tests	-1s
csharp-testsuite	-1s
Test Suite	-1s
	40m 15s

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