fix(readme): CI badges

\## Overview

Fixes the CI badges in the readme

README.md

@@ -7,8 +7,8 @@
 </h4>
 
 <p align="center">
-  <a href="https://github.com/ethereum-optimism/kona/actions/workflows/ci.yaml"><img src="https://github.com/ethereum-optimism/kona/actions/workflows/ci.yaml/badge.svg?label=ci" alt="CI"></a>
-  <a href="https://github.com/ethereum-optimism/kona/actions/workflows/fpvm-tests.yaml"><img src="https://github.com/ethereum-optimism/kona/actions/workflows/fpvm-tests.yaml/badge.svg?label=FPVM Tests" alt="FPVM Tests"></a>
+  <a href="https://github.com/ethereum-optimism/kona/actions/workflows/rust_ci.yaml"><img src="https://github.com/ethereum-optimism/kona/actions/workflows/rust_ci.yaml/badge.svg?label=ci" alt="CI"></a>
+  <a href="https://github.com/ethereum-optimism/kona/actions/workflows/fpvm_tests.yaml"><img src="https://github.com/ethereum-optimism/kona/actions/workflows/fpvm_tests.yaml/badge.svg?label=FPVM Tests" alt="FPVM Tests"></a>
   <img src="https://img.shields.io/badge/License-MIT-green.svg?label=license" alt="License">
   <a href="https://ethereum-optimism.github.io/kona"><img src="https://img.shields.io/badge/Contributor%20Book-grey?logo=mdBook" alt="Book"></a>
   <a href="https://github.com/ethereum-optimism/monorepo"><img src="https://img.shields.io/badge/OP%20Stack-monorepo-red" alt="OP Stack"></a>