Merge pull request #6 from AtelierArith/dependabot/github_actions/actions/checkout-6

Bump actions/checkout from 4 to 6

Author: terasakisatoshi

.github/workflows/CI.yml

@@ -30,7 +30,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}