Support for mac with m2(1)

[Taichi Iki]

Chrome does not work in a container running on mac with arm64.
For now, there seems to be no simple solution:

1. Using ubuntu built for arm64
   -> No Chrome binary for arm64.
2. Using the QEMU emulation to use images for amd64
   -> The emulation does not provide inotify, which is used by Chrome.
3. Using chromium instead
   -> The latest Chromium uses snap install and we can't use this command in Dockerfile.

This blog post compiles their own chromium in ubuntu 20.04 and may be helpful in our case.
https://qiita.com/rairaii/items/69220be640bdfc3466a1