Update ci.yml

Author: t-bltg

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
             arch: x64
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}