package/python-django: security bump to version 3.0.3

Fixes the following security issues:

- CVE-2020-7471: Potential SQL injection via StringAgg(delimiter)
  django.contrib.postgres.aggregates.StringAgg aggregation function was
  subject to SQL injection, using a suitably crafted delimiter.

For more details, see the advisory:
https://www.djangoproject.com/weblog/2020/feb/03/security-releases/

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-django/python-django.hash

@@ -1,5 +1,5 @@
 # md5, sha256 from https://pypi.org/pypi/django/json
-md5	24d5364af6b04c4dd173111a3207459a  Django-3.0.2.tar.gz
-sha256	8c3575f81e11390893860d97e1e0154c47512f180ea55bd84ce8fa69ba8051ca  Django-3.0.2.tar.gz
+md5	37ec335a56234c0ad56c383b810afc7f  Django-3.0.3.tar.gz
+sha256	2f1ba1db8648484dd5c238fb62504777b7ad090c81c5f1fd8d5eb5ec21b5f283  Django-3.0.3.tar.gz
 # Locally computed sha256 checksums
 sha256	b846415d1b514e9c1dff14a22deb906d794bc546ca6129f950a18cd091e2a669  LICENSE

package/python-django/python-django.mk

@@ -4,10 +4,10 @@
 #
 ################################################################################
 
-PYTHON_DJANGO_VERSION = 3.0.2
+PYTHON_DJANGO_VERSION = 3.0.3
 PYTHON_DJANGO_SOURCE = Django-$(PYTHON_DJANGO_VERSION).tar.gz
 # The official Django site has an unpractical URL
-PYTHON_DJANGO_SITE = https://files.pythonhosted.org/packages/c5/c1/5b901e21114b5dd9233726c2975c0aa7e9f48f63e41ec95d8777721d8aff
+PYTHON_DJANGO_SITE = https://files.pythonhosted.org/packages/3d/21/316d435bf8bd6f355be6b5765da91394fb38f405e5bea6680e411e4d470c
 PYTHON_DJANGO_LICENSE = BSD-3-Clause
 PYTHON_DJANGO_LICENSE_FILES = LICENSE
 PYTHON_DJANGO_SETUP_TYPE = setuptools