Auto archive carthage build artifacts (#308)

Co-authored-by: Lucas Nelaupe <[email protected]>

Author: lucas34

.github/workflows/swift.yml

@@ -62,6 +62,12 @@ jobs:
         carthage bootstrap --no-use-binaries --cache-builds
     - name: Build
       run: carthage build --no-skip-current --cache-builds;
+    - name: Archive
+      run: carthage archive
+    - uses: actions/upload-artifact@v2
+      with:
+        name: SwiftQueue
+        path: SwiftQueue.framework.zip
 
   XCODE: