Update typing-extensions to 4.12.0 #502

Job	Run time
matrix-builder	11s
Skipping on Python 3.11 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	29s
Skipping on Python 3.12 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	22s
Test on Python 3.7 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	40s
Test on Python 3.7 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	34s
Test on Python 3.8 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	1m 31s
Test on Python 3.8 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 11s
Test on Python 3.9 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	1m 20s
Test on Python 3.9 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 36s
Test on Python 3.10 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	1m 19s
Test on Python 3.10 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 11s
Test on Python 3.11 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 29s
Test on Python 3.12 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 46s
Test on Python pypy-3.9 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	1m 37s
Test on Python pypy-3.9 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	1m 45s
Test on Python pypy-3.10 and ubuntu-20.04 with celery>=4.0.0,<5.0.0	2m 0s
Test on Python pypy-3.10 and ubuntu-20.04 with celery>=5.0.0,<6.0.0	2m 0s
	21m 1s

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