Change build_test rules
According to https://app.clickup.com/t/10553282/CARE23-135390 there is some mismatch of rules in the build_test job that doesn't get run while the unit_test_custom_image_mr and unit_test_custom_image_branch do. That's why those errors are produced. Based on the rules of those jobs I updated them in build_test
Edited by David Pastor Vicente