fix cli workflow run-tests step

Author: zahash

.github/workflows/release-cli.yml

@@ -14,6 +14,14 @@ jobs:
     name: Run Tests
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+
       - name: Run Tests
         run: cargo test --package jsoncodegen-cli -- --nocapture