test: fix EVM proof plan deserialization test and unify test bytes

[iajoiner]

Summary

• Fix deserialization test to use empty table refs for column expressions (result columns from subplans use empty table refs per get_column_result_fields_as_references())
• Unify duplicated byte array into shared SIMPLE_FILTER_SERIALIZED_BYTES LazyLock static

Test plan

• cargo test -p proof-of-sql --lib evm_proof_plan::tests passes

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR refactors the EVM proof plan tests to use the new FilterExec instead of the deprecated LegacyFilterExec. The key change is that FilterExec accepts a DynProofPlan as input (using TableExec), creating a nested plan structure, whereas LegacyFilterExec used a TableExpr directly.

• Updates test structure to create explicit TableExec instances with schema information
• Updates serialization byte sequences to reflect the new variant ID (8 instead of 0) and nested plan structure
• Enhances the deserialization test with more detailed assertions using pattern matching

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 1 comment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.44%. Comparing base (4312e52) to head (0fb82c2).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1114      +/-   ##
==========================================
- Coverage   96.45%   96.44%   -0.02%     
==========================================
  Files         293      290       -3     
  Lines       52149    51715     -434     
==========================================
- Hits        50301    49875     -426     
+ Misses       1848     1840       -8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

🎉 This PR is included in version 0.127.27 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀