Backport release/v6.6: [codex] bump go-ethereum to v1.15.7-sei-17

[seidroid]

Backport of #3657 to release/v6.6.

[cursor]

PR Summary

Medium Risk
Bumping the forked go-ethereum dependency can change EVM execution and consensus behavior depending on fixes in sei-17, even though this PR only changes dependency pins.

Overview
Backports the go-ethereum fork bump from the mainline PR onto release/v6.6. The only edits are in go.mod and go.sum.

The replace for github.com/ethereum/go-ethereum is updated from v1.15.7-sei-16 to v1.15.7-sei-17, so the chain builds against the newer Sei-patched Ethereum library. Checksum entries in go.sum are refreshed to match. There are no application or module source changes in this diff.

^{Reviewed by Cursor Bugbot for commit 5173773. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Jun 29, 2026, 5:11 PM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.01%. Comparing base (a3e031b) to head (5173773).

Additional details and impacted files

@@               Coverage Diff                @@
##           release/v6.6    #3662      +/-   ##
================================================
- Coverage         58.89%   58.01%   -0.89%     
================================================
  Files              2225     2151      -74     
  Lines            183480   174933    -8547     
================================================
- Hits             108068   101492    -6576     
+ Misses            65704    64433    -1271     
+ Partials           9708     9008     -700     

Flag	Coverage Δ
sei-db	70.41% <ø> (ø)
sei-db-state-db	?

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see 74 files with indirect coverage changes

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