ci: install rustfmt (used by generate-raw crate) (#50)

Author: abrown

.github/workflows/main.yml

@@ -13,7 +13,7 @@ jobs:
       with:
         submodules: true
     - name: Install Rust
-      run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }}
+      run: rustup update ${{ matrix.rust }} && rustup default ${{ matrix.rust }} && rustup component add rustfmt
     - run: rustup target add wasm32-wasi
     - run: cargo build
     - run: cargo build --no-default-features