doc: update main branch name in doc/contributing/* (!43438) · Merge requests · Rodrigo Test / Test Group-nodejs / node · GitLab

Do not update/delete: Banner broadcast message test data

Do not update/delete: Notification broadcast message test data

Rodrigo Muino Tomonari requested to merge github/fork/lpinca/update/main-branch-name into main Jun 15, 2022

Refs: https://github.com/nodejs/node/issues/33864