test: add a11y tests to showcases #11413

Job	Run time
init / Init	19s
scan-secrets / TruffleHog	46s
lint / Lint	42s
build-packages / Build Packages	1m 8s
get-playwright-version / Get and save publish version	34s
build-showcases / Build Showcases	1m 36s
test-foundations / 🧪🎭 - foundations	1m 17s
test-components / 🧪🎭 - react:1/3	1m 30s
build-outputs / Build outputs	49s
test-components / 🧪🎭 - react:2/3	1m 55s
test-components / 🧪🎭 - react:3/3	1m 20s
test-components / 🧪🎭 - vue:1/3	1m 29s
test-components / 🧪🎭 - vue:2/3	2m 3s
test-components / 🧪🎭 - vue:3/3	1m 41s
test-showcases / 🧪🎭 - angular:1/5	2m 58s
test-showcases / 🧪🎭 - angular:2/5	3m 33s
test-showcases / 🧪🎭 - angular:3/5	3m 56s
test-showcases / 🧪🎭 - angular:4/5	2m 44s
test-showcases / 🧪🎭 - angular:5/5	3m 13s
test-showcases / 🧪🎭 - react:1/5	2m 43s
test-showcases / 🧪🎭 - react:2/5	3m 11s
test-showcases / 🧪🎭 - react:3/5	3m 55s
test-showcases / 🧪🎭 - react:4/5	2m 33s
test-showcases / 🧪🎭 - react:5/5	2m 59s
test-showcases / 🧪🎭 - vue:1/5	2m 34s
test-showcases / 🧪🎭 - vue:2/5	3m 20s
test-showcases / 🧪🎭 - vue:3/5	3m 46s
test-showcases / 🧪🎭 - vue:4/5	2m 26s
test-showcases / 🧪🎭 - vue:5/5	3m 4s
checks-done	1s
regenerate-snapshots / 🧪🎭 - Regenerate snapshots	13m 27s
deploy	0s
	1h 17m 32s

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