Add self to test_runner watchlist

WATCHLISTS

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Watchlist Rules
 # Refer: http://dev.chromium.org/developers/contributing-code/watchlists
 
 # IMPORTANT: The regular expression filepath is tested against each path using
 # re.search, so it is not usually necessary to add .*.
 
@@ skipping 1875 matching lines @@
                'nhiroki@chromium.org',
                'tzik@chromium.org'],
     'tab_capture': ['miu+watch@chromium.org'],
     'tab_contents': ['ajwong+watch@chromium.org',
                      'avi@chromium.org',
                      'creis+watch@chromium.org'],
     'tab_media_indicators': ['miu+watch@chromium.org'],
     'tcmalloc': ['dmikurube@chromium.org'],
     'telemetry': ['telemetry-reviews@chromium.org'],
     'test_runner': ['jochen+watch@chromium.org',
-                    'mlamouri+watch-test-runner@chromium.org'],
+                    'mlamouri+watch-test-runner@chromium.org',
+                    'einbinder+watch-test-runner@chromium.org'],
     'tests': [],
     'textinput': ['nona+watch@chromium.org',
                   'shuchen+watch@chromium.org',
                   'suzhe@chromium.org',
                   'yusukes+watch@chromium.org'],
     'textinput_chromeos': ['nona+watch@chromium.org',
                            'shuchen+watch@chromium.org',
                            'yusukes+watch@chromium.org'],
     'timers': ['chirantan+watch@chromium.org'],
     'tools_emacs': ['dhollowa+watch@chromium.org'],
@@ skipping 19 matching lines @@
                          'raymes+watch@chromium.org'],
     'windows_sandboxing': ['pennymac+watch@chromium.org',
                            'wfh+watch@chromium.org'],
     'x11': ['derat+watch@chromium.org',
             'sadrul@chromium.org',
             'yusukes+watch@chromium.org'],
     'xml': ['dominicc+watchlist@chromium.org'],
     'zoom': ['wjmaclean@chromium.org'],
   },
 }