Fix retry queue in preresolved lazy loading mode

[danielahrnsbrak]

Summary

• Fix KeyError crash when a Buildkite job is manually retried in preresolved-tests mode
• Preserve full queue entries (test_id + file_path) in retry queue so lazy loading can resolve them
• Fix Static#requeue to push back original entry with file path instead of bare test ID

Problem

When a CI job using --preresolved-tests is manually retried, the retry crashes with:

KeyError: key not found: "SomeTest#test_method..."
ci-queue/lib/ci/queue/static.rb:100:in 'Hash#fetch'

Root cause: Retry inherits stream_populate from Static, so QueuePopulationStrategy#populate_queue overwrites the retry queue's failed test entries with the full preresolved test list, then Static#poll crashes on index.fetch because the index wasn't built for those entries.

Fix

1. Retry#stream_populate — Override as no-op so the retry queue's pre-populated failed entries aren't replaced. configure_lazy_queue still sets entry_resolver, so poll lazily resolves each entry.

2. Worker#retry_queue — Preserve full queue entries (with file paths) instead of stripping to bare test IDs. Uses uniq! with block for idiomatic dedup by test ID.

3. Static#requeue — Track original queue entries during poll and push them back on requeue, preserving file paths and load-error payloads for subsequent retry attempts.

4. Version bump — 0.83.0 → 0.84.0

What's NOT changed

Retry#populate is intentionally left intact — RSpec and non-lazy Minitest retries call populate to build the @index for yielding runnable test/example objects. Those paths use bare test IDs that match index keys correctly.

Test plan

• Unit tests: Retry#stream_populate no-op, poll with entry_resolver, populate still builds index for eager mode, bare test ID backwards compatibility, requeue preserves full entries
• Redis integration tests: full entries preserved through stream_populate → poll → retry_queue, stream_populate no-op on retry, end-to-end with entry_resolver, multiple failure dedup
• All existing tests pass (59 tests, 154 assertions, 0 failures)