software/*: use python-with-eggs as section name

When we have a section to generate a python interpreter with eggs built
in, don't name this `extra-eggs` because the meaning is not clear.
2 jobs for fix/slapos-with-networkcache in 0 seconds
Status Job ID Name Coverage
  External
canceled SlapOS.SoftwareReleases.IntegrationTest-Jerome-729

99:26:32

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-729

06:42:03