chore: bumping enterprise package version to 4.18.6 #25495

Job	Run time
lms-1(py=3.11,dj=pinned,mongo=7.0)	13m 3s
lms-2(py=3.11,dj=pinned,mongo=7.0)	14m 1s
lms-3(py=3.11,dj=pinned,mongo=7.0)	18m 59s
lms-4(py=3.11,dj=pinned,mongo=7.0)	24m 1s
lms-5(py=3.11,dj=pinned,mongo=7.0)	14m 3s
lms-6(py=3.11,dj=pinned,mongo=7.0)	20m 11s
openedx-1-with-lms(py=3.11,dj=pinned,mongo=7.0)	16m 3s
openedx-2-with-lms(py=3.11,dj=pinned,mongo=7.0)	18m 8s
openedx-1-with-cms(py=3.11,dj=pinned,mongo=7.0)	10m 36s
openedx-2-with-cms(py=3.11,dj=pinned,mongo=7.0)	7m 33s
cms-1(py=3.11,dj=pinned,mongo=7.0)	7m 30s
cms-2(py=3.11,dj=pinned,mongo=7.0)	19m 33s
common-with-lms(py=3.11,dj=pinned,mongo=7.0)	11m 54s
common-with-cms(py=3.11,dj=pinned,mongo=7.0)	8m 46s
xmodule-with-lms(py=3.11,dj=pinned,mongo=7.0)	7m 57s
xmodule-with-cms(py=3.11,dj=pinned,mongo=7.0)	10m 27s
compile-warnings-report	7s
coverage (3.11)	1m 37s
Unit tests successful	2s
	3h 44m 31s

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