Don't pin web-sys and wasm-bindgen versions

[RichoDemus]

Pinning them forces all downstream dependencies to use exactly this version

The latest release of wgpu has pinned an old version of wasm-bindgen, forcing users to downgrade wasm-bindgen-cli in order to build

[grovesNL]

Hi! :wave: The WebGPU WebIDL is unstable, so the API often has breaking changes in web-sys between releases (i.e. not following semver). This also means we can't automatically use new versions of web-sys, because it would break this crate and any crates depending on it. Until it's stabilized we keep web-sys pinned and try to bump it regularly.

The web-sys unstable API versioning is discussed in https://rustwasm.github.io/wasm-bindgen/web-sys/unstable-apis.html (which is what we have to use for WebGPU at the moment).

[RichoDemus]

I see, does the same apply for wasm-bindgen or can I modify the PR to just remove the pin there?

edit: I did it, hopefully we can remove the wasm-bindgen pin :)

[grovesNL]

Yeah it's probably ok to unpin wasm-bindgen, but we'd need to change our examples publish action (e.g. possibly updating wasm-bindgen to latest before running the CLI) which needs the versions of wasm-bindgen and wasm-bindgen-cli to match exactly.

[bors[bot]]

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