fix(git): add vendor in .gitignore

vendor/github.com/lib/pq/user_windows.go

@@ -1,27 +0,0 @@
-// Package pq is a pure Go Postgres driver for the database/sql package.
-package pq
-
-import (
-	"path/filepath"
-	"syscall"
-)
-
-// Perform Windows user name lookup identically to libpq.
-//
-// The PostgreSQL code makes use of the legacy Win32 function
-// GetUserName, and that function has not been imported into stock Go.
-// GetUserNameEx is available though, the difference being that a
-// wider range of names are available.  To get the output to be the
-// same as GetUserName, only the base (or last) component of the
-// result is returned.
-func userCurrent() (string, error) {
-	pw_name := make([]uint16, 128)
-	pwname_size := uint32(len(pw_name)) - 1
-	err := syscall.GetUserNameEx(syscall.NameSamCompatible, &pw_name[0], &pwname_size)
-	if err != nil {
-		return "", ErrCouldNotDetectUsername
-	}
-	s := syscall.UTF16ToString(pw_name)
-	u := filepath.Base(s)
-	return u, nil
-}