changed the following line to use updated Ubuntu image

'image: ubuntu-2004:202201-02'

Author: aldocorbellini

.circleci/config.yml

@@ -15,7 +15,7 @@ jobs:
      environment:
        CATEGORY_TO_TEST: << parameters.q >>  # setup a parametric environment variable to be used by MATLAB testing script "runAllMyTestsFS.m"
      machine:
-         image: ubuntu-1604:201903-01
+         image: ubuntu-2004:202201-02
      steps:
         - checkout
         - matlab/install                        # previously `wget ...`