Add branch protections in GitHub & team permissions

[akegalj]

Context

As part of setting up repo for wallet rewrite.

Decision

[x] Every part of cardano-wallet team must get merge permission.
[x] Merge permission must be available if:

• at least one reviewer accpeted the PR
• our CI is green

NOTE: Reviews will be done mostly in pairs (pair-programming) with dev rotation around the code so that everyone is familiar with bits of the whole system.

---

Development Plan

Explained in the section above

PR

None.

QA

Done. See: settings/branches

(Not sure if one needs admin access to see these settings but, just in case, for what it's worth 😂 :)

$ git push origin master
Counting objects: 5, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 711.10 KiB | 0 bytes/s, done.
Total 5 (delta 0), reused 0 (delta 0)
remote: error: GH006: Protected branch update failed for refs/heads/master.
remote: error: At least 1 approving review is required by reviewers with write access.
To git@github.com:input-output-hk/cardano-wallet.git
 ! [remote rejected] HEAD -> master (protected branch hook declined)
error: failed to push some refs to 'git@github.com:input-output-hk/cardano-wallet.git'

[piotr-iohk]

lgtm 👍
(indeed, one needs admin access to see these settings :)