try to fix github action tests

Author: garikbesson

.github/workflows/tests.yml

@@ -14,12 +14,7 @@ jobs:
       RUST_BACKTRACE: 1
     steps:
       - name: Checkout branch
-        uses: actions/checkout@v2
-      - name: Install Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: 1.81.0
-          target: wasm32-unknown-unknown
+        uses: actions/checkout@v4
       - name: Run integration test
         run: cd integration-tests && cargo run --example integration-tests
       - name: Market tests