add deploy assets stage in gh actions

.github/workflows/ci.yml

@@ -55,3 +55,31 @@ jobs:
       with:
         name: ${{ matrix.target }}
         path: target/${{ matrix.target }}/release/
+  deploy:
+    name: Deploy to GitHub Releases
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/download-artifact@v2
+      with:
+        name: ${{ matrix.target }}
+    - name: Create Release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: v1.0.0
+        release_name: Release 1.0.0
+        draft: false
+        prerelease: false
+    - name: Upload Release Asset
+      id: upload-release-asset
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: target/${{ matrix.target }}/release/
+        asset_name: image-cleaner-${{ matrix.target }}
+        asset_content_type: application/octet-stream