Chore/add easy way to test webhooks

[pizzaisdavid]

PR Checklist

• - Commit messages are descriptive, it will be used in our Release Notes

PR Type

• chore

Description

This depends on #3598, it probably isn't worth looking at this pull request until that is merged and this is rebased.

Introduces an easy way to test webhooks.

A webhook request is made when an how-to is changed to accepted. You can see it in action in the gif below.

This pull request adds a basic nodejs server to the docker-compose and is started when using the emulator. So we can simulate sending webhooks. These changes only affect when the functions are being ran in the emulator.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.76%. Comparing base (8a877cd) to head (9d0045c).

❗ Current head 9d0045c differs from pull request most recent head 9df5c5a

Please upload reports for the commit 9df5c5a to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3610      +/-   ##
==========================================
- Coverage   74.23%   67.76%   -6.48%     
==========================================
  Files          41      410     +369     
  Lines        1246    12693   +11447     
  Branches      250     2238    +1988     
==========================================
+ Hits          925     8601    +7676     
- Misses        300     4069    +3769     
- Partials       21       23       +2     

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[onearmy-bot]

🎉 This PR is included in version 1.190.0 🎉

The release is available on GitHub release

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