fix(ci): install nushell for integration tests

.github/workflows/ci.yml

@@ -32,6 +32,9 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
+      - uses: hustcer/setup-nu@v3
+        with:
+          version: 0.112.2
       - uses: taiki-e/install-action@v2
         with:
           tool: cargo-nextest