The package fails to build with recent go-swag versions. We could have
used `go run github.com/swaggo/swag/cmd/swag`, but with the current Go
language framework in Nixpkgs this is really awkward since it’s hard to
infer proper GOOS/GOARCH/etc environment variables for the build
platform (and also reset environment variables intended for go build).
This change removes pathDeps argument from pufferpanel package. It is
rather wasteful to rebuild package to change PATH environment variable.
Instead, users should create a separate wrapper derivation or set
services.pufferpanel.extraPackages in NixOS configuration.
