sqlite3: security bump

A remote code execution vuln has been found in sqlite. Infos available
here:

https://blade.tencent.com/magellan/index_en.html

sqlite 3.26.0 contains the fix.

This commit also changes source URL to https.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

libs/sqlite3/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=sqlite
-PKG_VERSION:=3250300
+PKG_VERSION:=3260000
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-autoconf-$(PKG_VERSION).tar.gz
-PKG_HASH:=00ebf97be13928941940cc71de3d67e9f852698233cd98ce2d178fd08092f3dd
-PKG_SOURCE_URL:=http://www.sqlite.org/2018/
+PKG_HASH:=5daa6a3fb7d1e8c767cd59c4ded8da6e4b00c61d3b466d0685e35c4dd6d7bf5d
+PKG_SOURCE_URL:=https://www.sqlite.org/2018/
 
 PKG_LICENSE:=PUBLICDOMAIN
 PKG_LICENSE_FILES:=