add juliaup to CI

Author: jonwzheng

.github/workflows/CI.yml

@@ -98,6 +98,11 @@ jobs:
           make clean
           make
 
+      - name: Setup Juliaup
+        uses: julia-actions/install-juliaup@v2
+        with:
+          channel: '1.10'
+
       # RMS installation and linking to Julia
       - name: Install and link Julia dependencies
         timeout-minutes: 120 # this usually takes 20-45 minutes (or hangs for 6+ hours).