Merge pull request SciML#67 from SciML/dependabot/github_actions/julia-actions/setup-julia-3

Bump julia-actions/setup-julia from 2 to 3

Author: ChrisRackauckas

.github/workflows/Downgrade.yml

@@ -19,7 +19,7 @@ jobs:
         julia-version: ['1.10']
     steps:
       - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.julia-version }}
       - uses: julia-actions/julia-downgrade-compat@v2