Delete deprecated code in django 5.2 #5028

Job	Run time
Build debian package (focal)	3m 43s
Build docker image	4m 35s
Python Unittests (focal-3.10, tests)	8m 15s
Build debian package (jammy)	6m 1s
Python Unittests (focal-3.10, tests_nds)	7m 19s
Build debian package (noble)	5m 6s
Python Unittests (jammy-3.10, tests)	7m 42s
Python Unittests (jammy-3.10, tests_nds)	7m 28s
Python Unittests (noble-3.12, tests)	8m 23s
Python Unittests (noble-3.12, tests_nds)	8m 17s
Tests E2E docker	6m 30s
Tests E2E debian package (jammy)	6m 28s
Tests E2E debian package (noble)	6m 58s
Upload coverage to codecov (focal-3.10, tests)	6s
Upload coverage to codecov (focal-3.10, tests_nds)	7s
Upload coverage to codecov (jammy-3.10, tests)	11s
Upload coverage to codecov (jammy-3.10, tests_nds)	7s
Upload coverage to codecov (noble-3.12, tests)	6s
Upload coverage to codecov (noble-3.12, tests_nds)	11s
Publish (on release only)	0s
	1h 27m 33s

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