op-node's default engine-API RPC timeout is short; on nodes whose EL responds
slowly to engine_newPayload/forkChoiceUpdated (e.g. boba-mainnet op-reth pruned
during catch-up) op-node times out driving the EL and the execution head freezes
while op-node keeps deriving from L1. Raising the engine RPC timeout to 120s
prevents this class of stall fleet-wide.
Regenerated from env/op/node.env: adds the env var to every op-node service
(116 geth + 40 reth + 22 erigon composes); additions only, no other changes.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>