Adjust *_VERSION_INFO for 2.4.0 release

configure.ac

@@ -28,8 +28,8 @@ AC_CONFIG_FILES([src/libknot/version.h
 
 # Updating version info
 # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-AC_SUBST([libknot_VERSION_INFO],["-version-info 4:0:0"])
-AC_SUBST([libdnssec_VERSION_INFO],["-version-info 2:0:0"])
+AC_SUBST([libknot_VERSION_INFO],["-version-info 5:0:0"])
+AC_SUBST([libdnssec_VERSION_INFO],["-version-info 3:0:1"])
 AC_SUBST([libzscanner_VERSION_INFO],["-version-info 1:0:0"])
 
 # Automatically update release date based on configure.ac date