opnode: Withdrawal E2E test in go

[trianglesphere]

Description

This does the following:

• Adds withdrawal utilities (to opnode/withdrawals)
• Adds an end to end test in go of withdrawals
• Adds the L2 withdrawer contract
• Updates to a newer version of reference-go-ethereum

Metadata

• Fixes ENG-2202

[tynes]

Some of this stuff is going to change pending https://github.com/ethereum-optimism/optimistic-specs/pull/421 due to it being updated to support backwards compatible withdrawals

[codecov-commenter]

Codecov Report

Merging #423 (20143e9) into main (fb044a6) will decrease coverage by 1.35%. The diff coverage is 28.65%.

@@            Coverage Diff             @@
##             main     #423      +/-   ##
==========================================
- Coverage   51.88%   50.53%   -1.36%     
==========================================
  Files          63       66       +3     
  Lines        6703     7215     +512     
==========================================
+ Hits         3478     3646     +168     
- Misses       2784     3094     +310     
- Partials      441      475      +34     

Impacted Files	Coverage Δ
opnode/contracts/withdrawer/withdrawer_raw.go	4.18% <4.18%> (ø)
opnode/withdrawals/utils.go	59.23% <59.23%> (ø)
opnode/withdrawals/proof.go	59.70% <59.70%> (ø)
opnode/test/geth.go	65.07% <100.00%> (+0.27%)	:arrow_up:
opnode/test/setup.go	72.81% <100.00%> (ø)
l2os/txmgr/txmgr.go	95.65% <0.00%> (+1.86%)	:arrow_up:
opnode/contracts/deposit/deposit_feed_raw.go	11.40% <0.00%> (+6.18%)	:arrow_up:

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[tynes]

This could use a rebase

[trianglesphere]

This could use a rebase

Will do once #416 is merged