CMake: bump collector version to 2.4.1

Author: Lukas Hutak

CMakeLists.txt

@@ -15,7 +15,7 @@ endif()
 # Versions and other informations
 set(IPFIXCOL_VERSION_MAJOR 2)
 set(IPFIXCOL_VERSION_MINOR 4)
-set(IPFIXCOL_VERSION_PATCH 0)
+set(IPFIXCOL_VERSION_PATCH 1)
 set(IPFIXCOL_VERSION
     ${IPFIXCOL_VERSION_MAJOR}.${IPFIXCOL_VERSION_MINOR}.${IPFIXCOL_VERSION_PATCH})