Update CI.yml

Follow other SciML libraries to bump to 1.10 as minimal version to test against.

Author: isaacsas

.github/workflows/CI.yml

@@ -15,7 +15,6 @@ jobs:
           - Core
         version:
           - '1'
-          - '1.9'
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1