Update swift.yml

.github/workflows/swift.yml

@@ -9,7 +9,16 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+
+    - name: Set up proxy
+      run: |
+        echo "Setting up proxies"
+      env:
+        HTTP_PROXY: ${{ secrets.PROXY_HTTP }}
+        HTTPS_PROXY: ${{ secrets.PROXY_HTTPS }}
+
     - name: Build
       run: swift build -v
+
     - name: Run tests
       run: swift test -v