ref: use Rust version from toolchain for pre-publish check

Author: bidzyyys

.github/workflows/check-publish.yml

@@ -18,13 +18,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: set up rust
-        uses: dtolnay/rust-toolchain@master
-        id: toolchain
-        with:
-          target: wasm32-unknown-unknown
-          components: rust-src
-          toolchain: nightly-2024-07-25
+      - name: set up Rust
+        run: rustup show
 
       - uses: Swatinem/rust-cache@v2