Bug 1908136 [wpt PR 47148] - 2D canvas color parsing and serializatio…

…n, a=testonly

Automatic update from web-platform-tests
2D canvas color parsing and serialization

For whatwg/html#8917, w3c/csswg-drafts#10550, and whatwg/html#10481.
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wpt-commits: 6b71c578c4e9113e56b5445d4697b6a97aedf37d
wpt-pr: 47148

UltraBlame original commit: ba0041c24e1332e588896b9fb72ed44e32f1a385