hack: fix connection failure beteween containers on github actions

ref: myoung34/docker-github-actions-runner#199

Author: mickamy

.github/workflows/benchmark.yml

@@ -34,5 +34,6 @@ jobs:
         env:
             ISHOCON_APP_LANG: ${{ matrix.language }}
       - run: make up && sleep 60
-      - run: make bench
+      # specifying IP `172.17.0.1` is a hack to avoid connection failure on github actions
+      - run: docker exec -i ishocon2-bench-1 sh -c "./benchmark --ip 172.17.0.1:443"
         timeout-minutes: 5