op-e2e: Run CI in parallel

[trianglesphere]

Description

This gains about a 2x increase in the op-e2e test speed (16 mins -> 8 mins).
I needed to roll back a change I made to how TestMixedWithdrawalValidity was
being ran because that test did not handle the subtests being ran in parallel.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 3943664

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[codecov]

Codecov Report

Merging #5093 (3943664) into develop (b5bbc74) will increase coverage by 31.58%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #5093       +/-   ##
============================================
+ Coverage    40.98%   72.57%   +31.58%     
============================================
  Files          339      105      -234     
  Lines        20789     2388    -18401     
  Branches       771      411      -360     
============================================
- Hits          8520     1733     -6787     
+ Misses       11611      620    -10991     
+ Partials       658       35      -623     

Flag	Coverage Δ
bedrock-go-tests	?
contracts-bedrock-tests	49.74% <ø> (ø)
contracts-tests	98.86% <ø> (ø)
core-utils-tests	60.41% <ø> (ø)
dtl-tests	?
fault-detector-tests	?
sdk-tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
op-node/rollup/derive/system_config.go
op-service/rpc/cli.go
op-node/rollup/driver/origin_selector.go
op-chain-ops/genesis/genesis.go
packages/sdk/src/utils/assert.ts
packages/sdk/tasks/deposit-erc20.ts
op-node/rollup/derive/attributes_queue.go
packages/sdk/src/adapters/standard-bridge.ts
op-chain-ops/ether/genesis.go
op-chain-ops/crossdomain/legacy_withdrawal.go
... and 224 more

[mergify]

This PR has been added to the merge queue, and will be merged soon.

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.