Commit failures should fail workflow

[Josh-Cena]

Describe the bug

If git commit fails, the workflow still completes despite nothing being pushed.

Workflow used

https://github.com/Josh-Cena/Josh-Cena.github.io/blob/master/.github/workflows/mark-non-coding-day.yml

Expected behavior

The workflow should exit with a non-zero status so GitHub would put a red cross.

Logs

https://github.com/Josh-Cena/Josh-Cena.github.io/runs/5408061374?check_suite_focus=true

[EndBug]

@all-contributors please add @Josh-Cena for their bug report

[allcontributors]

@EndBug

I've put up a pull request to add @Josh-Cena! 🎉

[Josh-Cena]

That's quick @EndBug Thanks!

(Didn't get time last week to test, but can confirm it works now!)