Fix rust toolchain not installing correctly

Author: gomander

.github/actions/setup-rust/action.yaml

@@ -11,17 +11,10 @@ inputs:
 runs:
   using: 'composite'
   steps:
-    - name: Print rustup toolchain version
-      shell: bash
-      id: rustup-version
-      run: |
-        export RUST_TOOLCHAIN_VERSION="$(grep 'channel' rust-toolchain.toml | head -1 | awk -F '"' '{print $2}')"
-        echo "Rust toolchain version: $RUST_TOOLCHAIN_VERSION"
-        echo "RUST_TOOLCHAIN_VERSION=$RUST_TOOLCHAIN_VERSION" >> "$GITHUB_OUTPUT"
     - name: Setup Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: '${{ steps.rustup-version.outputs.RUST_TOOLCHAIN_VERSION }}'
+        toolchain: stable
         targets: ${{ inputs.targets }}
         components: ${{ inputs.components }}
       env:
@@ -35,4 +28,4 @@ runs:
           ~/.cargo/git/db/
           ~/.napi-rs
           target/${{ inputs.target }}
-        key: ${{ steps.rustup-version.outputs.RUST_TOOLCHAIN_VERSION }}-${{ inputs.target }}-cargo-cache
+        key: stable-${{ inputs.target }}-cargo-cache