Switch to cipd module in depot_tools

scripts/slave/recipes/chromium.expected/chromium_webkit_revision_chromium.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "chromium.webkit",
       "--builder",
       "WebKit Linux",
@@ skipping 94 matching lines @@
     ]
   },
   {
     "cmd": [],
     "name": "ensure_goma"
   },
   {
     "cmd": [
       "python",
       "-u",
-      "RECIPE_MODULE[build::cipd]/resources/bootstrap.py",
+      "RECIPE_MODULE[depot_tools::cipd]/resources/bootstrap.py",
       "--platform",
       "linux-amd64",
       "--dest-directory",
       "[SLAVE_BUILD]/cipd",
       "--json-output",
       "/path/to/tmp/json"
     ],
     "name": "ensure_goma.install cipd",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@",
@@ skipping 238 matching lines @@
       "@@@STEP_LINK@layout_test_results@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_Linux/571/layout-test-results/results.html@@@",
       "@@@STEP_LINK@(zip)@https://storage.googleapis.com/chromium-layout-test-archives/WebKit_Linux/571/layout-test-results.zip@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]