CI flake: Test Suite - SIGABRT

[clockwork-labs-bot]

Detected by CI Gremlin after a failed merge-queue run succeeded in a later merge-queue run without a new PR head commit.

Tests:

• Test Suite

Error:
error: test failed, to rerun pass -p spacetimedb-testing --test standalone_integration_test
2026-06-16T13:16:17.6749511Z

Failed job runs:

• https://github.com/clockworklabs/SpacetimeDB/actions/runs/27619379088/job/81664302951 (Test Suite, attempt merge queue run 27619379088 -> merge queue run 27624988414)

Context:

• Merge queue PR: Don't preallocate based on bsatn length prefix #5343
• PR head SHA: a2ca083
• Later successful run: https://github.com/clockworklabs/SpacetimeDB/actions/runs/27624988414