env: activate: add node_modules/.bin and vendor/bin to path

[kamilsk]

Motivation: the application is multi-lingual, and "bin/os/arch" is not enough.

node_modules/.bin is required for the frontend part, vendor/bin for the backend on PHP.

Source: https://github.com/octomation/go-tool/blob/f59cf8b6efb783cc90ebf4752f3557afc76c4894/bin/activate#L106.