package/stellarium: bump version to 0.21.3

Release notes:
http://stellarium.org/release/2021/12/25/stellarium-0.21.3.html

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/stellarium/stellarium.hash

@@ -1,5 +1,5 @@
 # From https://github.com/Stellarium/stellarium/releases
-sha1  e61b66eae54888cf90f6dab7b49bc4ca6d9d941b   stellarium-0.21.2.tar.gz
-sha256  e588b66a173834f74a6462f5219ce4d38e8f87405b932267f6f1d2d4dbff4a82  stellarium-0.21.2.tar.gz
+sha1  a3396c403050e073c592da695faeb048c1d5e19b  stellarium-0.21.3.tar.gz
+sha256  8ac6c054d12f136fe0d5c0deaaa8d7b69dd2a462be1711a187364574aef97e7f  stellarium-0.21.3.tar.gz
 # Locally computed
 sha256  3aeeb5bb98bf7041ab82cffe15efa28ac58ee2bdf162b71301f5c192be631259  COPYING

package/stellarium/stellarium.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-STELLARIUM_VERSION = 0.21.2
+STELLARIUM_VERSION = 0.21.3
 STELLARIUM_SITE = https://github.com/Stellarium/stellarium/releases/download/v$(STELLARIUM_VERSION)
 STELLARIUM_LICENSE = GPL-2.0+
 STELLARIUM_LICENSE_FILES = COPYING