Retrying error state webhooks and cleanup for orphaned ones

[epipav]

Changes proposed ✍️

• When checking stuck webhooks, now we also set the error state webhooks to pending state that wasn't tried 5 times. This will help retrying the error state webhooks again.

• When marking a webhook as error, we now also update the retry count.

• New cleanup function: cleanUpOrphanedWebhooks removes the orphaned webhooks from the database that doesn't belong to any integrations anymore

What

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This pull request implements a new feature to retry incoming webhooks based on their state and error. It modifies the incomingWebhookRepository class, the incomingWebhooks table, and the WebhookProcessor service to support this functionality. It also includes migration scripts to update the database schema.
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🤖 Generated by Copilot at 3b87e50

Oh we are the WebhookProcessor crew
We handle webhooks old and new
We add and drop the retries column
And sing this shanty as we run

Why

How

🤖 Generated by Copilot at 3b87e50

• Add a new feature to track and retry incoming webhooks that fail to be processed by the webhook processor service (link, link, link, link, link)
• Add a new feature to delete incoming webhooks that have no corresponding integration or have a deleted integration (link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.