pcre: bump to version 8.40

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pcre/pcre.hash

@@ -1,2 +1,2 @@
 # Locally calculated after checking pgp signature
-sha256	b858099f82483031ee02092711689e7245586ada49e534a06e678b8ea9549e8b	pcre-8.39.tar.bz2
+sha256	00e27a29ead4267e3de8111fcaa59b132d0533cdfdbdddf4b0604279acbcf4f4	pcre-8.40.tar.bz2

package/pcre/pcre.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PCRE_VERSION = 8.39
+PCRE_VERSION = 8.40
 PCRE_SITE = ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre
 PCRE_SOURCE = pcre-$(PCRE_VERSION).tar.bz2
 PCRE_LICENSE = BSD-3c