Add patch to satisfy assinine sphinx 7.x parsing logic for copyright year...

Add patch to satisfy assinine sphinx 7.x parsing logic for copyright year substitution (Closes: #1042656).

debian/patches/0005-Satisfy-assinine-sphinx-7.x-parsing-logic-for-copyri.patch

+From: Michael Fladischer <FladischerMichael@fladi.at>
+Date: Thu, 16 Nov 2023 13:32:44 +0000
+Subject: Satisfy assinine sphinx 7.x parsing logic for copyright year
+ substitution.
+
+---
+ docs/conf.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/docs/conf.py b/docs/conf.py
+index 9cd570b..8b01234 100644
+--- a/docs/conf.py
++++ b/docs/conf.py
+@@ -49,7 +49,7 @@ globals().update(conf.build_config(
+     canonical_url='http://django-celery-beat.readthedocs.io',
+     webdomain='',
+     github_project='celery/django-celery-beat',
+-    copyright='2016',
++    copyright='2016, Celery Project',
+     django_settings='proj.settings',
+     intersphinx_mapping=intersphinx_mapping,
+     path_additions=[os.path.join(os.pardir, 't')],

debian/patches/series

@@ -2,3 +2,4 @@
 0002-Drop-requirement-on-tzdata.patch
 0003-Fix-Language-field-in-django.po-files.patch
 0004-Fix-tests-with-celery-5.3-Closes-1039611.patch
+0005-Satisfy-assinine-sphinx-7.x-parsing-logic-for-copyri.patch