In Data Migrator History, same entities are retried multiple times when `--retry-skipped` is passed

[tasso94]

Environment (Required on creation)

Data Migrato 0.3-SNAPSHOT

Description (Required on creation; please attach any relevant screenshots, stacktraces, log files, etc. to the ticket)

In Data Migrator History, the same entities are retried multiple times when --retry-skipped is passed.

Steps to reproduce (Required on creation)

1. Have entities that are permanently skipped even after retrying multiple times.
2. Migrate entities
3. Retry entity migration with --history --retry-skipped flag.
4. Look at log output.

Observed Behavior (Required on creation)

The log output shows that entities are retried multiple times in the same run.

Expected behavior (Required on creation)

Logs show that entities are retried only once within the same retry run.

Root Cause (Required on prioritization)

This code expects that there are no entities that are permanently skipped, but they actually exist:
https://github.com/camunda/camunda-7-to-8-migration-tooling/blame/2708edae9f2c60edbf69d95478d05b25d6896eb5/data-migrator/core/src/main/java/io/camunda/migration/data/impl/clients/DbClient.java#L171-L177

Examples: inconsistencies, CMMN-related user tasks, and standalone user tasks.

Solution Ideas

Keep track of which entities have been retried already and don't retry them again.

Workarounds

Hints

Links

Breakdown

Pull Requests

• fix(data-migrator): avoid same entities are retried multiple times #1025

Dev2QA handover

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