Refactor redirects logic in payments (#8590) #22705

Job	Run time
WP - nightly \| WC - latest \| wcpay - merchant	17m 44s
WP - nightly \| WC - latest \| wcpay - shopper	38m 11s
Generate the matrix for subscriptions-tests dynamically	1s
WP - nightly \| WC - latest \| subscriptions - merchant	4m 50s
WP - nightly \| WC - latest \| subscriptions - shopper	6m 51s
WC - 7.7.0 \| wcpay - merchant	15m 58s
WC - 7.7.0 \| wcpay - shopper	40m 11s
WC - 7.7.0 \| subscriptions - merchant	5m 3s
WC - 7.7.0 \| subscriptions - shopper	8m 5s
WC - latest \| wcpay - merchant	15m 39s
WC - latest \| wcpay - shopper	40m 14s
WC - latest \| subscriptions - merchant	7m 23s
WC - latest \| subscriptions - shopper	9m 18s
WC - beta \| wcpay - merchant	14m 19s
WC - beta \| wcpay - shopper	38m 24s
WC - beta \| subscriptions - merchant	5m 11s
WC - beta \| subscriptions - shopper	6m 49s
	4h 34m 11s

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