Boost: Update foundation page list instructions #92096

Job	Run time
Determine tests matrix	1m 2s
E2E: Build jetpack-boost	3m 19s
Jetpack Boost - Base e2e tests	4m 13s
Jetpack Boost - Modules e2e tests	3m 33s
Jetpack Boost - Critical CSS e2e tests	2m 26s
Jetpack Boost - Page Cache e2e tests	3m 3s
Jetpack Boost - Concatenate JS/CSS e2e tests	3m 20s
Jetpack Boost - Image CDN e2e tests	2m 52s
Jetpack Boost - Image Guide e2e tests	2m 34s
Slack notification	1m 3s
Test report	4s
	27m 29s

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