chore(ios): update Podfile.lock

ios/Podfile.lock

     - GoogleToolboxForMac/Defines (= 2.2.0)
     - "GoogleToolboxForMac/NSString+URLArguments (= 2.2.0)"
   - "GoogleToolboxForMac/NSString+URLArguments (2.2.0)"
-  - GoogleUtilities/AppDelegateSwizzler (5.3.6):
+  - GoogleUtilities/AppDelegateSwizzler (5.3.7):
     - GoogleUtilities/Environment
     - GoogleUtilities/Logger
     - GoogleUtilities/Network
-  - GoogleUtilities/Environment (5.3.6)
-  - GoogleUtilities/Logger (5.3.6):
+  - GoogleUtilities/Environment (5.3.7)
+  - GoogleUtilities/Logger (5.3.7):
     - GoogleUtilities/Environment
-  - GoogleUtilities/MethodSwizzler (5.3.6):
+  - GoogleUtilities/MethodSwizzler (5.3.7):
     - GoogleUtilities/Logger
-  - GoogleUtilities/Network (5.3.6):
+  - GoogleUtilities/Network (5.3.7):
     - GoogleUtilities/Logger
     - "GoogleUtilities/NSData+zlib"
     - GoogleUtilities/Reachability
-  - "GoogleUtilities/NSData+zlib (5.3.6)"
-  - GoogleUtilities/Reachability (5.3.6):
+  - "GoogleUtilities/NSData+zlib (5.3.7)"
+  - GoogleUtilities/Reachability (5.3.7):
     - GoogleUtilities/Logger
-  - GoogleUtilities/UserDefaults (5.3.6):
+  - GoogleUtilities/UserDefaults (5.3.7):
     - GoogleUtilities/Logger
   - GTMSessionFetcher/Core (1.2.1)
   - nanopb (0.3.901):
     - nanopb/encode (= 0.3.901)
   - nanopb/decode (0.3.901)
   - nanopb/encode (0.3.901)
-  - ObjectiveDropboxOfficial (3.9.2)
+  - ObjectiveDropboxOfficial (3.9.4)
   - React (0.57.8):
     - React/Core (= 0.57.8)
   - react-native-background-timer (2.1.1):
   GoogleAppMeasurement: 98b71f5e04142793729a5ef23e5b96651ff4b70f
   GoogleSignIn: 7ff245e1a7b26d379099d3243a562f5747e23d39
   GoogleToolboxForMac: ff31605b7d66400dcec09bed5861689aebadda4d
-  GoogleUtilities: 95996bea7c7d9b8fb811b7507669a4a8762f80c7
+  GoogleUtilities: 111a012f4c3a29c9e7c954c082fafd6ee3c999c0
   GTMSessionFetcher: 32aeca0aa144acea523e1c8e053089dec2cb98ca
   nanopb: 2901f78ea1b7b4015c860c2fdd1ea2fee1a18d48
-  ObjectiveDropboxOfficial: aa792e0556ceb7b72955fa29a2709072f6e35fd9
+  ObjectiveDropboxOfficial: a5afefc83f6467c42c45f2253f583f2ad1ffc701
   React: 1fe0eb13d90b625d94c3b117c274dcfd2e760e11
   react-native-background-timer: bb7a98c8e97fc7c290de2d423dd09ddb73dcbcbb
   react-native-calendar-events: fe6fbc8ed337a7423c98f2c9012b25f20444de09