fix get proxy address ip

.github/workflows/build_bromite.yaml

@@ -44,7 +44,7 @@ jobs:
         shell: bash
         run: |
           if ! [[ -z "${HTTP_PROXY}" ]]; then
-            PROXY_ADDR=http://$(hostname -I | xargs):8118
+            PROXY_ADDR=http://$(hostname -I | cut -d' ' -f1 | xargs):8118
             echo "PROXY_ADDR=$PROXY_ADDR" >> $GITHUB_ENV
             sudo iptables -D INPUT -p tcp -s localhost --dport 8118 -j ACCEPT
             sudo iptables -D INPUT -p tcp --dport 8118 -j DROP