Update Node.js from 10 to 14 used in CI in Gatsby template
What does this MR do?
Updates Node.js from 10 to 14 used in CI of Gatsby template
Screenshots (strongly suggested)
Does this MR meet the acceptance criteria?
- I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
- I have self-reviewed this MR per code review guidelines.
- I have followed the style guides.
- This change is backwards compatible across updates, or this does not apply.
Related to #333192