psysh 0.11 does not work with Drush 10

[felmab]

See #4916

[bobthecow]

That ~ sure is a pain 😕

I would recommend ^ operator based constraints in general, but especially here, as they respect SemVer better. Caret knows what to do with 0.x versions, but tilde does not. In this case, something like

^0.6 || ^0.7 || ^0.8 || ^0.9 || ^0.10

… And update it with each 0.x version bump once it's been determined not to cause any backwards compatibility issues.