updating the workflow

Author: mrodrig6

.github/workflows/test_suite.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Set up MATLAB
         uses: matlab-actions/setup-matlab@v2
         with: 
-          release: latest
+          release: R2023a
           products: > 
             MATLAB
             Symbolic_Math_Toolbox