Add explicit matplotlib dep for parakeet and sortformer #3849

Job	Run time
test-coreml / test-backend-macos (coreml, models) / macos-job	12m 59s
test-coreml / test-backend-macos (coreml, operators) / macos-job	10m 22s
test-coreml / test-backend-linux	0s
test-coreml / package-golden-artifacts	0s
	23m 21s

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