Update Rust actions workflow

- Add integration test workflow for Python client against a built server
- Update udeps CI workflow to use cargo-binstall internally

Author: peopleig

.github/workflows/rust.yml

@@ -42,6 +42,12 @@ jobs:
       - name: Run Tests
         run: cargo test --verbose
 
+      - name: Upload Server binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: server-binary
+          path: target/debug/server
+
   udeps:
     name: Unused Dependencies (cargo-udeps)
     runs-on: ubuntu-latest
@@ -58,8 +64,11 @@ jobs:
       - name: Install protoc for gRPC server
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler 
 
+      # Using binstall to minimize workflow speed
       - name: Install cargo-udeps
-        run: cargo +nightly install cargo-udeps --locked
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-udeps
 
       - name: Run cargo-udeps
         run: cargo +nightly udeps --workspace --all-targets --all-features
@@ -85,3 +94,70 @@ jobs:
 
       - name: Check TOML formatting with taplo
         run: taplo format --check
+
+  integration:
+    name: Integration Test
+    needs: build_and_test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Download server binary
+        uses: actions/download-artifact@v4
+        with:
+          name: server-binary
+          path: target/debug
+
+      # This is very IMP. Kept crashing without it
+      # File permissions are not maintained during artifact upload (upload-artifact@v4)
+      - name: Make binary executable
+        run: chmod +x target/debug/server
+
+      - name: Start Server
+        env:
+          GRPC_ROOT_PASSWORD: my-secret-password
+          DIMENSION: "3"
+          STORAGE_TYPE: inmemory
+          INDEX_TYPE: flat
+          GRPC_HOST: 0.0.0.0
+          GRPC_PORT: "50051"
+          DISABLE_HTTP: "true"
+        run: |
+          ./target/debug/server > server.log 2>&1 &
+          echo $! > server.pid
+
+      - name: Wait for server to be ready
+        run: |
+          for i in {1..30}; do
+            if (echo > /dev/tcp/127.0.0.1/50051) 2>/dev/null; then
+              echo "Server is up"
+              exit 0
+            fi
+            sleep 1
+          done
+          echo "Server did not start in time"
+          cat server.log
+          exit 1
+
+      - name: Set Up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: 'pip'
+
+      - name: Install Package and Dev Deps
+        working-directory: client/python
+        run: pip install -e ".[dev]"
+
+      - name: Run example scripts
+        working-directory: client/python
+        run: pytest examples/all.py -v
+
+      - name: Dump server logs on failure
+        if: failure()
+        run: cat server.log
+
+      - name: Stop server
+        if: always()
+        run: kill $(cat server.pid) 2>/dev/null || true