Replace GDK master refs with main

Ash McKenzierequested to merge
1116-change-the-default-branch-name-from-master-to-main into main

What does this Merge Request do and why?

This MR updates the necessary code and docs within the GDK to support changing the default branch for the GDK from master to main 🙂

Merge Request checklist

  • This change is backward compatible. If not, please include steps to communicate to our users.
  • Tests added for new functionality. If not, please raise Issue to follow-up.
  • Documentation added/updated, if needed.
  • gdk doctor test added, if needed.
  • Add the ~highlight label if this MR should be included in the CHANGELOG.md.

Closes #1116 (closed)

Edited by Ash McKenzie

Merge request reports