Bump version to 5.7.3

app/build.gradle

@@ -58,8 +58,8 @@ protobuf {
     }
 }
 
-def canonicalVersionCode = 811
-def canonicalVersionName = "5.7.2"
+def canonicalVersionCode = 812
+def canonicalVersionName = "5.7.3"
 
 def postFixSize = 100
 def abiPostFix = ['universal'   : 0,