Added arduino-builder in vendoring

Author: cmaglie

.drone.yml

@@ -6,7 +6,6 @@ pipeline:
   build:
     image: golang:latest
     commands:
-      - go get github.com/arduino/arduino-builder
       - go build -o arduino
       - go test ./... -race
     secrets: [TEST_USERNAME, TEST_PASSWORD]

Gopkg.lock

@@ -24,6 +24,12 @@
   go-tests = true
   unused-packages = true
 
+# arduino-cli requires a special version of the builder
+[[constraint]]
+  name = "github.com/arduino/arduino-builder"
+  branch = "cli-inception"
+  source = "github.com/bcmi-labs/arduino-builder"
+
 [[constraint]]
   branch = "master"
   name = "github.com/arduino/board-discovery"