minor docker-compose.yml improvements

3 jobs for master in 38 minutes and 36 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Sdist
passed #29446
build:sdist

00:00:16

 
  Build Image
passed #29447
privileged
build:image

00:34:06

 
  Test
passed #29448
privileged
test

00:04:13

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