fix github action

.github/workflows/rust.yml

@@ -7,10 +7,10 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
     - uses: taiki-e/install-action@cargo-hack
     - name: check MSRV 
     - run: cargo hack check --rust-version --workspace --all-targets --ignore-private
+    - uses: actions/checkout@v4
     - name: Build release
       run: cargo build --verbose --release
     - name: Run tests