Make multi-rank runtime analysis independent of artifact order

[Arnavsharma2]

Sort each rank's runtime artifacts by graph ID before comparison so filesystem order cannot cause comparisons between different graphs. Adds a regression using stored traces that fails on upstream and passes with the fix.

Validation: 7 tests pass
Suite: 64 passed, one pre-existing failure 'test_all_ranks_chromium_events_combined`

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