CI now needs wasm32-wasip1

[itowlson]

PR checks for #2927 didn't catch this. But it's now needed for smoke testing the templates.

[radu-matei]

Not sure if CI failure is transient, re-kicked off the integration test.

[rylev]

Looks like one more spot needs to be updated:

https://github.com/fermyon/spin/blob/78f3e762c9fee752c451f5e4a7da91b373feb378/.github/workflows/build.yml#L198-L199

[lann]

Error: expected body chunk '[251, 246, 241, 236, 231, 226, 221, 216, 211, 206, ...(1048566 more items)]', got '[251, 246, 241, 236, 231, 226, 221, 216, 211, 206, ...(589814 more items)]'
test integration_tests::test_wasi_http_double_echo ... FAILED

Haven't seen that one before... re-running now in case its just flake.

[itowlson]

@lann Double echo is one of the classic flakes, just no longer as frequent as some of the others.

Thanks for fixing up that last one (and thanks @rylev for finding it), and for the nice tidying of the installs!