Add clippy_wasm.sh to justfile for discoverability (rerun-io#3025)

### What

As the title say. That's were I looked first when I needed it.

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested [demo.rerun.io](https://demo.rerun.io/pr/3025) (if
applicable)

- [PR Build Summary](https://build.rerun.io/pr/3025)
- [Docs
preview](https://rerun.io/preview/pr%3Aantoine%2Fjust-rs-lint-wasm/docs)
- [Examples
preview](https://rerun.io/preview/pr%3Aantoine%2Fjust-rs-lint-wasm/examples)

justfile

@@ -130,6 +130,10 @@ rs-lint:
     cargo doc --quiet --document-private-items --no-deps --all-features
     cargo test --quiet --doc --all-features # runs all doc-tests
 
+# Lint Rust code for the wasm target
+rs-lint-wasm:
+    scripts/clippy_wasm.sh
+
 # Run all examples with the specified args
 rs-run-all *ARGS:
     #!/usr/bin/env bash