Fix/increase docker php memory limit (#10454) #24406

Job	Run time
WP - nightly \| WC - latest \| wcpay - merchant	16m 39s
WP - nightly \| WC - latest \| wcpay - shopper	23m 38s
Generate the matrix for subscriptions-tests dynamically	1s
WP - nightly \| WC - latest \| subscriptions - merchant	5m 14s
WP - nightly \| WC - latest \| subscriptions - shopper	7m 3s
WC - 7.7.0 \| wcpay - merchant	17m 3s
WC - 7.7.0 \| wcpay - shopper	19m 45s
WC - 7.7.0 \| subscriptions - merchant	4m 44s
WC - 7.7.0 \| subscriptions - shopper	6m 23s
WC - latest \| wcpay - merchant	19m 29s
WC - latest \| wcpay - shopper	20m 31s
WC - latest \| subscriptions - merchant	4m 56s
WC - latest \| subscriptions - shopper	6m 45s
WC - beta \| wcpay - merchant	19m 22s
WC - beta \| wcpay - shopper	21m 34s
WC - beta \| subscriptions - merchant	4m 42s
WC - beta \| subscriptions - shopper	6m 29s
	3h 24m 18s

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