Changed julia version from 1.11 to 1.12 in ci.yml

Author: MaxGruebmeyer

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
       matrix:
         version:
           - '1.10'
-          - '1.11'
+          - '1.12'
         os:
           - ubuntu-latest
           - macOS-latest