Avoids regenerating the cannon traces when performing an initial move at startup if the game is already resolved.

ci: Convert go-e2e-tests CI to make targets

This change makes it much easier to make build changes to the op-e2e
without having to reflect the changes from the Makefile into the CI
definition.  It also makes easier for developers to mirror the execution
of what's going on in CI locally.

feat(indexer): wire up ETL metrics

feat(indexer): introduce metrics server for the indexer process

chore(indexer): Use middleware for healthz

op-challenger: Separate multigame and single game code into different…

fix(indexer): application-level context. better go-routine management

op-challenger: Add CLI option for max concurrency

Add note about arbitrary message sending from OptimismPortal

Configurable Polling Variables for Indexer

op-challenger: Play games in parallel