chore: upgrade eth.zig to v0.9.0

[koko1123]

Summary

Bumps the eth.zig dependency v0.8.1 -> v0.9.0 (StrobeLabs/eth.zig#113 + #112):

• ENS resolution now goes through the Universal Resolver with full ENSIP-15 name normalization
• HTTP transport double-deinit fix on non-200 responses

No SDK code changes required: the SDK does not consume the ENS APIs, and the Wallet/Signer call sites already use the current constructors.

Testing

• zig build clean
• zig build test: 504/504 (401 unit + 103 contract) pass
• zig fmt --check clean

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated the Ethereum dependency to version 0.9.0.
  • Refreshes the dependency reference and integrity information.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 3cc2195f-45e9-4720-ba50-2c47cd24f0f9

📥 Commits

Reviewing files that changed from the base of the PR and between ca6d510 and de3b1e4.

📒 Files selected for processing (1)

• build.zig.zon

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📝 Walkthrough

Walkthrough

The PR updates the eth dependency from v0.8.1 to v0.9.0. It changes the dependency commit reference and package hash in build.zig.zon.

Changes

eth dependency update

Layer / File(s)	Summary
Update eth dependency reference build.zig.zon	The eth dependency now references v0.9.0 with its updated Git commit and package hash.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• StrobeLabs/perpcity-zig-sdk#12: Updates the same dependencies.eth entry with a version, Git reference, and hash change.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: upgrading the eth.zig dependency to v0.9.0.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch koko/eth-zig-0.9.0

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