docs: User retirement extensibility ADR #32590

Job	Run time
collect-and-verify	4m 23s
lms-1(py=3.11,dj=pinned,mongo=7.0)	10m 5s
lms-2(py=3.11,dj=pinned,mongo=7.0)	11m 52s
lms-3(py=3.11,dj=pinned,mongo=7.0)	15m 17s
lms-4(py=3.11,dj=pinned,mongo=7.0)	19m 56s
lms-5(py=3.11,dj=pinned,mongo=7.0)	11m 36s
lms-6(py=3.11,dj=pinned,mongo=7.0)	15m 51s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 36s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	14m 32s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 41s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 37s
cms-1(py=3.11,dj=pinned,mongo=7.0)	4m 36s
cms-2(py=3.11,dj=pinned,mongo=7.0)	13m 10s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 47s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	5m 40s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	10m 19s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 32s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 54s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	9m 0s
Unit tests successful	1s
coverage (3.11)	1m 46s
compile-warnings-report	8s
merge-artifacts	11s
	3h 22m 30s

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