CI/CD

Bump tailwindcss from 1.9.6 to 4.0.6 #2019

Job	Run time
Lint files	22s
Test addon (locked dependencies) (ember)	19s
Test compatibility (ember-lts-4.4)	17s
Test addon (locked dependencies) (node)	22s
Test addon (floating dependencies) (ember)	23s
Test compatibility (ember-lts-4.8)	17s
Test addon (locked dependencies) (test-apps)	23s
Test addon (floating dependencies) (node)	25s
Test compatibility (ember-lts-4.12)	17s
Test addon (floating dependencies) (test-apps)	21s
Test compatibility (ember-lts-5.4)	16s
Test compatibility (ember-release)	15s
Test compatibility (ember-beta)	20s
Test compatibility (ember-canary)	19s
Test compatibility (embroider-safe)	17s
	4m 53s

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