mongoose: bump to version 6.7

Signed-off-by: Davide Viti <zinosat@tiscali.it>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mongoose/mongoose.hash

@@ -1,2 +1,2 @@
 # Locally computed:
-sha256	94b934da083afe8abb1c0af5abb8f25294050011793f048166b12f000f9433a0  mongoose-6.2.tar.gz
+sha256	ccc971298db70963d3f13766c3246a3c36ae7e388acfab7ba2180149d9c8c64f  mongoose-6.7.tar.gz

package/mongoose/mongoose.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MONGOOSE_VERSION = 6.2
+MONGOOSE_VERSION = 6.7
 MONGOOSE_SITE = $(call github,cesanta,mongoose,$(MONGOOSE_VERSION))
 MONGOOSE_LICENSE = GPL-2.0
 MONGOOSE_LICENSE_FILES = LICENSE