Merge pull request #574 from SciML/dependabot/github_actions/actions/checkout-6

Bump actions/checkout from 4 to 6

Author: ChrisRackauckas

.github/workflows/Tests.yml

@@ -41,7 +41,7 @@ jobs:
           - version: "pre"
             group: "nopre"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: "${{ matrix.version }}"