Fix cancellation spelling (#7354) #20952

Job	Run time
Generate the matrix for subscriptions-tests dynamically	1s
WP - nightly \| WC - latest \| wcpay - merchant	27m 12s
WP - nightly \| WC - latest \| wcpay - shopper	13m 19s
WP - nightly \| WC - latest \| subscriptions - merchant	6m 10s
WP - nightly \| WC - latest \| subscriptions - shopper	8m 7s
WC - 7.7.0 \| wcpay - merchant	25m 40s
WC - 7.7.0 \| wcpay - shopper	14m 3s
WC - 7.7.0 \| subscriptions - merchant	6m 4s
WC - 7.7.0 \| subscriptions - shopper	7m 52s
WC - latest \| wcpay - merchant	24m 44s
WC - latest \| wcpay - shopper	15m 51s
WC - latest \| subscriptions - merchant	5m 49s
WC - latest \| subscriptions - shopper	9m 1s
WC - beta \| wcpay - merchant	25m 16s
WC - beta \| wcpay - shopper	13m 16s
WC - beta \| subscriptions - merchant	6m 30s
WC - beta \| subscriptions - shopper	9m 50s
	3h 38m 45s

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