at-spi2-core: upgrade 2.56.1 -> 2.56.2

Changelog:
===========
* Fix the build with glib < 2.76.
* a11y-manager-device: Fix unmap_keysym_modifier.

(From OE-Core rev: 2f6da18f8bf9e41fdc4b0d65eb0352719973ff66)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/atk/at-spi2-core_2.56.1.bb → meta/recipes-support/atk/at-spi2-core_2.56.2.bb

@@ -13,7 +13,7 @@ MAJ_VER = "${@oe.utils.trim_version("${PV}", 2)}"
 
 SRC_URI = "${GNOME_MIRROR}/${BPN}/${MAJ_VER}/${BPN}-${PV}.tar.xz"
 
-SRC_URI[sha256sum] = "fd177fecd8c95006ff0a355eafd7066fe110a2e17eb5eb5fe17ff70e49a4eace"
+SRC_URI[sha256sum] = "e1b1c9836a8947852f7440c32e23179234c76bd98cd9cc4001f376405f8b783b"
 
 DEPENDS = " \
 	dbus \