update company-phpactor following recent phpactor completion changes

[kermorgant]

see phpactor/completion#10

quoting phpactor's author

adds class_import key to the suggestions, deprecates 'info' in favour of short_description and removed the vim specific types, e.g. t, m and c, so you have method, constructor, class, variable, etc.

[dantleech]

could be removed in 0.10.0 (release after next).

[kermorgant]

fixed by upcoming #43