[disc][porousmediumflow][co2] Use discretization tag instead of enum as template argument.

7 jobs for !2844 with feature/discretization-tags-introduction in 14 minutes and 14 seconds (queued for 6 seconds)
Child pipeline (parent) detached
Status Name Job ID Coverage
  Configure
passed configure #48580

00:01:44

 
  Linting
passed black (python) #48582

00:00:38

passed pylint-flake8 (python) #48583

00:00:19

 
  Select
passed select tests #48586

00:00:47

 
  Build
passed compile cpp #48590

00:10:04

 
  Test
passed test cpp #48593

00:01:36

passed test python #48596

00:00:13