fix: import path should be github.com/ooni/probe-cli/v3 (#200)

See https://github.com/ooni/probe/issues/1335#issuecomment-771499511

internal/ooni/ooni_test.go

@@ -1,29 +0,0 @@
-package ooni
-
-import (
-	"io/ioutil"
-	"os"
-	"path"
-	"testing"
-)
-
-func TestInit(t *testing.T) {
-	ooniHome, err := ioutil.TempDir("", "oonihome")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(ooniHome)
-
-	probe := NewProbe("", ooniHome)
-	swName := "ooniprobe-cli-tests"
-	swVersion := "3.0.0-alpha"
-	if err := probe.Init(swName, swVersion); err != nil {
-		t.Error(err)
-		t.Fatal("failed to init the context")
-	}
-
-	configPath := path.Join(ooniHome, "config.json")
-	if _, err := os.Stat(configPath); os.IsNotExist(err) {
-		t.Fatal("config file was not created")
-	}
-}