NOTIF-512 Notify org admins when a webhook is disabled

[gwenneg]

▶️ Part 2 of NOTIF-512

When a webhook is automatically disabled because of 4xx or 5xx failures, an action is emitted on the platform.notifications.ingress topic with the following information:

• bundle: console
• application: notifications
• event type: integration-disabled

The action also contains additional information about the issue:

• the endpoint ID and name
• the type of the error (client or server)
• the HTTP status in case of client error
• the number of errors in case of server errors

Using a default behavior group, the event type described above will be used to send an email notification to the org admins of the account that owns the disabled integration. The email body will vary depending on the type of the error.

[codecov-commenter]

Codecov Report

Base: 60.29% // Head: 60.47% // Increases project coverage by +0.17% 🎉

Coverage data is based on head (430f16a) compared to base (2d9fa3c).
Patch coverage: 80.64% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1482      +/-   ##
============================================
+ Coverage     60.29%   60.47%   +0.17%     
- Complexity     1083     1088       +5     
============================================
  Files           222      224       +2     
  Lines          5322     5369      +47     
  Branches        520      523       +3     
============================================
+ Hits           3209     3247      +38     
- Misses         1928     1937       +9     
  Partials        185      185              

Impacted Files	Coverage Δ
.../notifications/templates/ConsoleNotifications.java	0.00% <0.00%> (ø)
...otifications/events/KafkaMessageWithIdBuilder.java	83.33% <83.33%> (ø)
...d/notifications/events/FromCamelHistoryFiller.java	85.45% <100.00%> (-1.22%)	⬇️
...ifications/events/IntegrationDisabledNotifier.java	100.00% <100.00%> (ø)
...ions/processors/webhooks/WebhookTypeProcessor.java	73.73% <100.00%> (+0.54%)	⬆️
...tions/templates/EmailTemplateMigrationService.java	93.71% <100.00%> (+0.09%)	⬆️

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[gwenneg]

Rebased to fix conflicts.

[josejulio]

lgtm

[josejulio]

This could be removed in the future, once we have something to have defaults (e.g. all admins subscribed for these notifications and a default behavior group on the account that can be removed) so they can fine-tune this setting (maybe a particular RBAC group would be the one handling these errors and no the admin itself.

[josejulio]

As a side note, the suggested builder syntax has been merged, but not deployed yet!