Re-enable DepsCache using GOMA_DEPS_CACHE_FILE

scripts/slave/recipes/v8.expected/full_client_v8_V8_Win32___debug_builder.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\kill_processes.py"
     ],
     "name": "taskkill"
   },
   {
@@ skipping 279 matching lines @@
       "--src-dir",
       "[SLAVE_BUILD]\\v8",
       "--goma-cache-dir",
       "[GOMA_CACHE]",
       "--buildbot-buildername",
       "V8 Win32 - debug builder",
       "--buildbot-mastername",
       "client.v8",
       "--buildbot-slavename",
       "TestSlavename",
+      "--goma-deps-cache-file",
+      "V8_Win32___debug_builder.gomadeps",
       "--compiler",
       "goma",
       "--goma-jsonstatus",
       "/path/to/tmp/json",
       "--goma-service-account-json-file",
       "C:\\creds\\service_accounts\\service-account-goma-client.json",
       "--goma-dir",
       "[CACHE]\\cipd\\goma",
       "--"
     ],
@@ skipping 102 matching lines @@
     "~followup_annotations": [
       "@@@STEP_TEXT@V8 Win32 - debug@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]