solid-test script uses bash and doesn't work in official docker image

The solid-test script has #!/usr/bin/env bash for a shebang. However, the docker image provided at nodesolidserver/node-solid-server only comes with sh, not bash.

This means that if you try and run solid-test using the docker image, you get:

/opt/solid $ /usr/local/lib/node_modules/solid-server/bin/solid-test
env: can't execute 'bash': No such file or directory

It seems that this script is so simple that it should be possible to just use sh, at least on linux. I don't know if sh on macos is now zsh, or a borne compatible shell.

從 issue 引用的 bin/solid-test 中的 solid-test 入口點開始，並檢查其 shell 需求。在官方 nodesolidserver/node-solid-server 映像中執行它；當 command 能夠在其中執行而不需要不可用的 bash 執行檔，且其現有行為獲得保留時，即完成。