Backup: add on-demand backup feature #83174

Job	Run time
Determine tests matrix	59s
E2E: Build jetpack-boost	3m 14s
E2E: Build jetpack-core	3m 45s
E2E: Build jetpack-search	3m 41s
E2E: Build jetpack-social	3m 8s
E2E: Build jetpack-sync	3m 41s
E2E: Build jetpack-videopress	3m 6s
Jetpack connection e2e tests	4m 51s
Jetpack pre-connection e2e tests	2m 52s
Jetpack post-connection e2e tests	5m 3s
Jetpack sync e2e tests	4m 41s
Jetpack Boost - Base e2e tests	4m 2s
Jetpack Boost - Modules e2e tests	3m 38s
Jetpack Boost - Critical CSS e2e tests	3m 14s
Jetpack Boost - Page Cache e2e tests	6m 18s
Jetpack Boost - Concatenate JS/CSS e2e tests	2m 59s
Jetpack Boost - Image CDN e2e tests	3m 11s
Jetpack Boost - Image Guide e2e tests	2m 45s
Search e2e tests	4m 43s
VideoPress e2e tests	2m 23s
Social e2e tests	4m 35s
Test report	4s
Slack notification	52s
	1h 17m 45s

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