fix(deps): update dependency @edx/paragon to v21 #47962

Job	Run time
collect-and-verify	3m 41s
shared-with-lms-1(py=3.12,dj=pinned,mongo=7.0)	23m 30s
lms-5(py=3.12,dj=pinned,mongo=7.0)	19m 13s
lms-4(py=3.12,dj=pinned,mongo=7.0)	20m 20s
lms-1(py=3.12,dj=pinned,mongo=7.0)	20m 34s
lms-2(py=3.12,dj=pinned,mongo=7.0)	19m 5s
shared-with-cms-1(py=3.12,dj=pinned,mongo=7.0)	24m 7s
lms-3(py=3.12,dj=pinned,mongo=7.0)	18m 23s
cms-1(py=3.12,dj=pinned,mongo=7.0)	5m 5s
shared-with-lms-2(py=3.12,dj=pinned,mongo=7.0)	21m 10s
cms-2(py=3.12,dj=pinned,mongo=7.0)	20m 3s
Unit tests successful	5s
coverage (3.12)	1m 35s
compile-warnings-report	2m 44s
merge-artifacts	26s
	3h 20m 1s

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