update release-plan #395

Job	Run time
Tests	2m 51s
Percy Tests	2m 33s
Floating Dependencies	1m 47s
ember-canary - Allowed to fail	2m 28s
ember-lts-3.28	2m 17s
ember-release-no-deprecations - Allowed to fail	2m 22s
ember-release	2m 22s
ember-beta	2m 20s
ember-classic	2m 21s
ember-default-with-jquery	2m 19s
embroider-safe	2m 22s
embroider-optimized	2m 19s
no-deprecations	2m 20s
	30m 41s

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