ci(pr): install Rust toolchain and run sanity check inside uv environment

Author: akhundMurad

.github/workflows/pr.yml

@@ -15,6 +15,9 @@ jobs:
         with:
           python-version: "3.11"
 
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
       - name: Install uv
         uses: astral-sh/setup-uv@v3
 
@@ -63,7 +66,7 @@ jobs:
 
       - name: Sanity check (import Rust extension)
         run: |
-          python -c "import typeid; import typeid._base32; print('Rust extension OK')"
+          uv run python -c "import typeid; import typeid._base32; print('Rust extension OK')"
 
       - name: Run tests
         run: |