databases/firebird25-{server|client}: 2.5.2 -> 2.5.3

Changes:
http://www.firebirdsql.org/file/documentation/release_notes/html/rlsnotes253.html#notes-253

PR:		193174
Tested by:	Steve Faleiro <stevef199@yahoo.com>


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367309 35697150-7ecd-e111-bb59-0022644237b5