Include Requested Scopes in Webhook Requests

[3schwartz]

Add requested scopes to the webhook request, allowing the webhook to condition access based on the scopes requested by the user.

Related issue(s)

Fixes #3620, particularly implementing the idea proposed in this comment: #3620 (comment).

If this PR is accepted, I can provide an update to the documentation.

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security vulnerability, I
  confirm that I got the approval (please contact
  [email protected]) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.29%. Comparing base (e278b40) to head (e830579).
Report is 20 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3891   +/-   ##
=======================================
  Coverage   73.28%   73.29%           
=======================================
  Files         139      139           
  Lines       10914    10933   +19     
=======================================
+ Hits         7998     8013   +15     
- Misses       2377     2384    +7     
+ Partials      539      536    -3     

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[3schwartz]

Hi @aeneasr, @hperl, @alnr,

Would any of you have some time to take a look at this? I’d really appreciate your input.