[test][test_docker] Increase a bit more the container memory for the...

[test][test_docker] Increase a bit more the container memory for the memory-limit test (maybe a py3 requirement?)
2 jobs for fix-docker-pull in 18 minutes and 35 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #158389
docker-build
build_linux_36

00:18:33

64.0%
passed #158390
macosx
build_macosx_36

00:15:51

65.0%