feat: added unsubsribe url for email notifications (#34967) #175

Job	Run time
collect-and-verify	4m 36s
lms-1(py=3.11,dj=pinned,mongo=7.0)	13m 30s
lms-2(py=3.11,dj=pinned,mongo=7.0)	14m 29s
lms-3(py=3.11,dj=pinned,mongo=7.0)	19m 52s
lms-4(py=3.11,dj=pinned,mongo=7.0)	23m 20s
lms-5(py=3.11,dj=pinned,mongo=7.0)	12m 36s
lms-6(py=3.11,dj=pinned,mongo=7.0)	18m 42s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	15m 45s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	18m 28s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	10m 18s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	7m 21s
cms-1(py=3.11,dj=pinned,mongo=7.0)	5m 2s
cms-2(py=3.11,dj=pinned,mongo=7.0)	19m 8s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 41s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	6m 21s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	7m 53s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	7m 43s
Unit tests successful	1s
compile-warnings-report	9s
coverage	0s
merge-artifacts	5s
	3h 37m 0s

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