don't use FFTW in demos

9 jobs for pocketfft in 16 minutes and 42 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Docker
passed #788202
build_docker_from_cache

00:09:14

 
  Test
passed #788204
test_mpi

00:04:04

passed #788203
test_serial

00:04:44

80.0%
 
  Demo Runs
passed #788209
run_bernoulli

00:00:25

passed #788210
run_curve_fitting

00:00:23

passed #788206
run_getting_started_1

00:00:29

passed #788207
run_getting_started_2

00:01:06

passed #788208
run_getting_started_3

00:02:43

passed #788205
run_ipynb

00:01:15