Bumped to 5.5.1 (#382)

Author: Langston Smith

gradle/dependencies.gradle

@@ -8,7 +8,7 @@ ext {
   ]
 
   version = [
-      mapboxMapSdk       : '5.5.0',
+      mapboxMapSdk       : '5.5.1',
       mapboxGeocoding    : '3.0.0-beta.3',
       mapboxGeoJson      : '3.0.0-beta.3',
       mapboxServices     : '2.2.9',