Switch to cipd module in depot_tools

recipes/recipes/recipes_py_continuous.expected/basic.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'recipes-py', 'url': 'https://chromium.googlesource.com/external/github.com/luci/recipes-py'}]",
       "--root",
       "recipes-py",
@@ skipping 36 matching lines @@
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@",
       "@@@SET_BUILD_PROPERTY@got_revision@\"edcfe0cf57183aad8ad72a82355d966b34ff412c\"@@@",
       "@@@SET_BUILD_PROPERTY@got_revision_cp@\"refs/heads/master@{#123695}\"@@@"
     ]
   },
   {
     "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": "install cipd",
     "~followup_annotations": [
       "@@@STEP_TEXT@cipd instance_id: 40-chars-fake-of-the-package-instance_id@@@",
@@ skipping 28 matching lines @@
       "@@@STEP_LOG_LINE@json.output (invalid)@null@@@",
       "@@@STEP_LOG_END@json.output (invalid)@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]