chore: turn back the build link (#34)

Author: spacewander

.github/workflows/ci.yml

@@ -26,8 +26,7 @@ jobs:
 
       - name: Install
         run: |
-          # TODO: change it back once we have merged it
-          wget https://raw.githubusercontent.com/api7/apisix-build-tools/stream-apisix/build-apisix-base.sh
+          wget https://raw.githubusercontent.com/api7/apisix-build-tools/master/build-apisix-base.sh
           chmod +x build-apisix-base.sh
           OR_PREFIX=$OPENRESTY_PREFIX ./build-apisix-base.sh latest