Update gutenberg ref

Author: jhnstn

build.gradle

@@ -20,7 +20,7 @@ ext {
     automatticRestVersion = '1.0.8'
     automatticStoriesVersion = '2.1.0'
     automatticTracksVersion = '3.0.0'
-    gutenbergMobileVersion = '5849-6b3b4f2daf124e06d07256aacf342be6488c66eb'
+    gutenbergMobileVersion = 'v1.97.0'
     wordPressAztecVersion = 'v1.6.4'
     wordPressFluxCVersion = '2.30.0'
     wordPressLoginVersion = '1.3.0'