Merge pull request #361 from JuliaIO/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 2 to 4

Author: sjkelly

.github/workflows/CI.yml

@@ -33,7 +33,7 @@ jobs:
             os: macos-latest
             arch: x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}