separate build & test steps

.github/workflows/rust.yml

@@ -16,17 +16,25 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - uses: dtolnay/rust-toolchain@stable
+    - uses: Swatinem/rust-cache@v2
       with:
-        submodules: recursive
+        cache-on-failure: true
+    - name: Build
+      run: cargo build --verbose --workspace
 
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
     - name: Install Foundry
       uses: foundry-rs/foundry-toolchain@v1
-
     - uses: dtolnay/rust-toolchain@stable
     - uses: Swatinem/rust-cache@v2
       with:
         cache-on-failure: true
-    - name: Build
-      run: cargo build --verbose --workspace
     - name: Run tests
       run: cargo test --verbose --workspace