Bazel: unified --repository_cache for bazel sync
Bazel: unified --repository_cache for bazel sync

If we specify `--repository_cache` for the `build` command rather than
a `common` option, commands like `bazel sync` will not respect the
settings there.

Ref:
https://docs.bazel.build/versions/main/guide.html#option-defaults

ycool/apollo,ycool/apollo,ycool/apollo,ApolloAuto/apollo,ApolloAuto/apollo,ApolloAuto/apollo,ycool/apollo,ycool/apollo,ApolloAuto/apollo,ycool/apollo,ApolloAuto/apollo,ApolloAuto/apollo