Merge trunk v8.4.0 into develop #1

Job	Run time
Generate the matrix for subscriptions-tests dynamically	1s
WP - nightly \| WC - latest \| wcpay - merchant	4m 21s
WP - nightly \| WC - latest \| wcpay - shopper	3m 56s
WP - nightly \| WC - latest \| subscriptions - merchant	3m 45s
WP - nightly \| WC - latest \| subscriptions - shopper	4m 10s
WC - 7.7.0 \| wcpay - merchant	4m 11s
WC - 7.7.0 \| wcpay - shopper	3m 43s
WC - 7.7.0 \| subscriptions - merchant	3m 50s
WC - 7.7.0 \| subscriptions - shopper	3m 47s
WC - latest \| wcpay - merchant	3m 54s
WC - latest \| wcpay - shopper	4m 2s
WC - latest \| subscriptions - merchant	3m 49s
WC - latest \| subscriptions - shopper	3m 47s
WC - beta \| wcpay - merchant	4m 1s
WC - beta \| wcpay - shopper	4m 6s
WC - beta \| subscriptions - merchant	3m 46s
WC - beta \| subscriptions - shopper	4m 2s
	1h 3m 11s

Provide feedback