bump version to 4.5.2

fix for log_exception in noop mode

Author: prettycoder

lib/appoptics_apm/version.rb

@@ -8,7 +8,7 @@ module AppOpticsAPM
   module Version
     MAJOR = 4
     MINOR = 5
-    PATCH = 1
+    PATCH = 2
 
     STRING = [MAJOR, MINOR, PATCH].compact.join('.')
   end