chore: replace pytz with zoneinfo #31006

Job	Run time
collect-and-verify	4m 27s
lms-1(py=3.11,dj=pinned,mongo=7.0)	9m 47s
lms-2(py=3.11,dj=pinned,mongo=7.0)	11m 35s
lms-3(py=3.11,dj=pinned,mongo=7.0)	11m 38s
lms-4(py=3.11,dj=pinned,mongo=7.0)	11m 20s
lms-5(py=3.11,dj=pinned,mongo=7.0)	11m 18s
lms-6(py=3.11,dj=pinned,mongo=7.0)	11m 19s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	10m 47s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	10m 14s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 18s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 22s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 46s
cms-2(py=3.11,dj=pinned,mongo=7.0)	11m 48s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 18s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	5m 55s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	8m 54s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 41s
Unit tests successful	2s
compile-warnings-report	1s
coverage	1s
merge-artifacts	1s
	2h 36m 32s

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