CI: run cranky for wasm32

[emilk]

Checklist

• I have read and agree to Contributor Guide and the Code of Conduct
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• I've added a line to CHANGELOG.md (if this is a big enough change to warrant it)

[emilk]

I don't understand why this is green. Locally on this branch:

> cargo cranky -p re_viewer --target wasm32-unknown-unknown --all-features -- -D warnings
…
error: the borrowed expression implements the required traits
  --> crates/re_renderer/src/workspace_shaders.rs:16:24
   |
16 |         fs.create_file(&virtpath, include_str!("../shader/composite.wgsl").into())
   |                        ^^^^^^^^^ help: change this to: `virtpath`
   |
   = note: `-D clippy::needless-borrow` implied by `-D warnings`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

[emilk]

Closed by #1447