Add R2023a to ci.yml

Author: eszmw

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy: 
       fail-fast: false
       matrix:
-        MATLABVersion: [R2023b R2024a]
+        MATLABVersion: [R2023a R2023b]
     runs-on: ubuntu-latest
     steps:
       # Checks-out your repository