update the version number

Author: junleekim

Detectors/FIT/FT0/base/include/FT0Base/Geometry.h

@@ -69,7 +69,7 @@ class Geometry
   TVector3 mMCP[52];
   TVector3 mAngles[28];
 
-  ClassDefNV(Geometry, 2);
+  ClassDefNV(Geometry, 3);
 };
 } // namespace ft0
 } // namespace o2