Preparing the Embulk 0.10.x series.

[hiroyuki-sato]

As you know, We will soon release Embulk v0.11, the next "stable" version. (See detail: Embulk v0.11 is coming soon)

For testing the Embulk v0.10 development series, I want to port this plugin to v0.10.x.

I'll create some PRs for this work.

• [ ] Add GitHub Actions
• [ ] Fix testing
• [ ] Port embulk-output-bigquery to v0.10.x

[hiroyuki-sato]

Sorry, I posted wrong place.