Merge pull request #9 from JuliaMath/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 3 to 4

Author: stevengj

.github/workflows/CI.yml

@@ -23,7 +23,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}