qipy: add pip action

Change-Id: I0cbf440b751cb53926d6ac979e0c6ed1a6d7cb05
Reviewed-on: http://gerrit.aldebaran.lan/41148
Reviewed-by: vbarbaresi <vbarbaresi@aldebaran-robotics.com>
Tested-by: vbarbaresi <vbarbaresi@aldebaran-robotics.com>