Add clippy component to toolchain setup (#13)

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This PR installs `clippy` as part of the toolchain setup so that other
steps can run `clippy`

.github/workflows/rust.yml

@@ -105,6 +105,7 @@ jobs:
           toolchain: 1.76.0
           target: wasm32-unknown-unknown
           override: true
+          components: clippy
 
       - name: Set up cargo cache
         uses: Swatinem/rust-cache@v2