Showcase - Add min-height to `Shw::Label` #14150

Job	Run time
Get files changed and conditionally skip CI	12s
Tests	5m 57s
ember-lts-3.28	5m 19s
ember-lts-4.12	3m 0s
ember-beta	3m 8s
embroider-safe	2m 59s
embroider-optimized	1m 10s
	21m 45s

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