build(deps): Bump actions/setup-node from 5 to 6 (#146)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/wasm-ci.yaml

@@ -27,7 +27,7 @@ jobs:
       with:
         # needs to match Cargo.toml and flake.nix version
         tool: [email protected]
-    - uses: actions/setup-node@v5
+    - uses: actions/setup-node@v6
       with:
         node-version: ${{ matrix.node_version }}
         cache: yarn