Missing output for code example of `tar_make(some_specific_target)`

[joelnitta]

When describing granular control of the workflow, the lesson says you can do tar_make(some_specific_target), but does not actually show the results of running such code.

This could be done in the following lines:

https://github.com/carpentries-incubator/targets-workshop/blob/b471c640afc87d93aa04ea4c4497f8e34a55428b/episodes/lifecycle.Rmd#L253-L263C4

by doing tar_invalidate(penguins_data_raw), then tar_make(penguins_data_raw)