Test output needs an update

[NicolasArayaB]

In exercise 12.4-Map_list_of_objects, we have to use datetime.date.today(), but the test file have a hardcoded output, expecting a specific age, which is no longer valid.

[tommygonzaleza]

PR: learnpack#2
Hrs: 0.5

[tommygonzaleza]

Issue fixed here: 45d28b6