Add deleted claim table

What does this MR do and why?

We're using queue pattern, to implement claim deletion for our tables that are using cascade deletion.

Inspired by Thong's proposal.

Steps

1. Create a deleted claim table and add triggers
2. Create service to process deleted claims
3. Create a worker to process the queue

References

• gitlab-com/gl-infra/tenant-scale/cells-infrastructure/team#498
• gitlab-com/gl-infra/tenant-scale/cells-infrastructure/team#365 (comment 2710296049)
• !200701

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Checkout the branch
2. Create some affected records, e.g. emails
3. Delete a user that has more emails
4. Verify that deleted records table has been populated with corresponding value 🎉

MR acceptance checklist

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