Changes the solidity version to 0.8.15 from 0.8.16
to ensure that the same version of solc is used.

op-e2e: only add a signer key to l1

The current code adds the same signing key to all Ethereum clients
(including the L2 nodes).  I found this to be quite confusing when
parsing the code, and, it's unnecessary for the L2s to have signing
keys.

More concise python

More concise
Co-authored-by: Will Cory <willcory@Wills-MacBook-Pro.local>
Co-authored-by: Matthew Slipper <me@matthewslipper.com>

fix: Quick fix to missing yarn problem

fix: remove foundryup

try still sourcing it?

fix: Add node.js to devnet tests

fix: Correctly run node foundryup etc.

desperately trying stuff

OHHHH that's the bug: go had a bug in it

add back foudnryup

check version too

fix: Install pnpm and yarn in ci builder

todos

comment in dockerfile

op-challenger: Add tests for Position attack and defend

op-challenger: Remove unused examples

op-node: Set DialBackoff when dialing op-geth

op-challenger: Remove dead code from game.go

op-challenger: Properly implement stepping against trace index 0

This is important to help the op-node be more resilient to nodes
starting in different orders.

This code to determine which claim is the pre-state claim & which claim
is the post state claim is no longer needed because it is done in the
contracts.

When performing an attack step against trace index 0 we need to provide
the absolute pre-state rather than pulling the value from the middle
of the trace.

This PR also modifies the absolute pre-state that is stored in the devnet
to match what the op-challenger is playing.

cannon: Fix unaligned preimage read in MIPS.sol

ci: Check OpenMIPS binaries

Fault Proof VM Specs

Co-authored-by: protolambda <proto@protolambda.com>

Co-authored-by: protolambda <proto@protolambda.com>

Co-authored-by: protolambda <proto@protolambda.com>