Add caching for tests

.github/workflows/ci.yml

@@ -35,6 +35,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+            ~/.cargo/bin
+          key: ${{ needs.setup-environment.outputs.cargo_cache_key }}
+          id: cache-cargo-test
 
       - name: Cargo test
         run: cargo test --release --workspace --all-targets --all-features