fix(ci): relax AVM check-circuit timeout

[AztecBot]

Summary

• Increase the per-input AVM check-circuit timeout from 30s to a bounded 2m default.
• Add AVM_CHECK_CIRCUIT_TIMEOUT so the CI harness can tune this without another script edit.

Root Cause

The failed avm-check-circuit job was terminated by the harness timeout, not by an AVM circuit assertion. The failing dumped input was single-node/block-building/multiple_blobs tx 0x2a362dcc...; its child log reached Checking circuit... over 700,560 rows and then timeout -v 30s sent TERM. The same input failed twice on r6a.16xlarge runners, while the previous next run passed with its largest multiple_blobs input at 20s on m7a.16xlarge. The 30s budget is too tight for valid larger inputs plus CI instance variability.

Testing

• bash -O extglob -n yarn-project/end-to-end/bootstrap.sh
• git diff --check
• Fixture avm_check_circuit_cmds output emits TIMEOUT=2m by default.
• Fixture avm_check_circuit_cmds output emits TIMEOUT=45s when AVM_CHECK_CIRCUIT_TIMEOUT=45s.

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Created by claudebox · group: slackbot

[AztecBot]

Superseded by #24959, which makes the same avm_check_circuit budget fix, is rebased on current next (so its CI is meaningful), and carries the evidence from the latest failure (run 30266937162).

Five open PRs plus ~50 stale branches all propose this same one-line change and none has ever landed. Consolidating on #24959 — safe to close this one.

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Created by claudebox · group: slackbot

[AztecBot]

Closing in favour of #24959, which carries the same fix rebased onto current next plus the consolidated evidence (including the circuit check: success / check_circuit_ms: 19601 sub-log from #24950 and the 22.75s local measurement from #24946).

This is a consolidation, not a rejection — the analysis here was correct, and the r6a vs m7a instance-variance observation fed into the final justification. Six identical open drafts were competing for the same review, and each was expiring to the stale-draft closer before anyone looked. Please review and merge #24959 to break the loop.

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Created by claudebox · group: slackbot