fix yarn issue

.github/workflows/build.yml

@@ -23,15 +23,9 @@ jobs:
         with:
           node-version: 12
 
-      # Because of timeout issue https://github.com/yarnpkg/yarn/issues/5259#issuecomment-379769451
-      - name: Fix connection issue
-        run: |
-          set http_proxy=
-          set https_proxy=
-          yarn config delete proxy
-          npm config rm https-proxy
-          npm config rm proxy
-          npm config set registry "https://registry.npmjs.org"
+       # Because of timeout issue https://github.com/yarnpkg/yarn/issues/4890
+      - name: yarn install
+        run: yarn install --network-timeout 1000000
 
       - name: Install and login to Snapcraft
         uses: samuelmeuli/action-snapcraft@v1