chore(ci/cache): cache reth deps

[theochap]

Description

Fix CI caching for reth dependencies

[Copilot]

Pull Request Overview

This PR attempts to fix CI caching for reth dependencies by modifying the Swatinem/rust-cache configuration in the setup action. The change replaces the workspaces parameter with cache-directories and removes caching for the main project workspace.

Key Changes

• Replaced workspaces parameter with cache-directories
• Removed main workspace caching (. -> target)
• Changed reth caching from tests/reth -> tests/reth/target to tests/reth/target

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[Copilot]

The cache-directories parameter is intended for caching additional non-Rust directories. For Rust workspace caching, the correct parameter is workspaces. This change removes caching for the main project workspace (. -> target) and incorrectly uses cache-directories instead of workspaces for the reth submodule. The correct configuration should be:\nyaml\nworkspaces: |\n . -> target\n tests/reth -> tests/reth/target\n\nThis ensures both the main project and the reth submodule target directories are properly cached by Swatinem/rust-cache@v2.

Suggested change

	cache-directories: |
	tests/reth/target
	workspaces: |
	. -> target
	tests/reth -> tests/reth/target

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.3%. Comparing base (be9d673) to head (dc5abab).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

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