feat: implement improved rollup backend #2192

Job	Run time
summarize	0s
get_previous_image_digests	22s
build_images (frontend)	6m 13s
build_images (upload_failures)	44s
build_images (upload_success)	49s
build_images (dataset_submissions)	49s
build_images (processing)	3m 30s
build_images (wmg_processing)	2m 59s
build_images (cellguide_pipeline)	1m 11s
deploy-rdev	3m 38s
seed-database-e2e-tests	15s
delete-previous-images	18s
seed-wmg-cellguide-rdev	1m 27s
e2e-logged-in-test	2m 2s
functional-test	6m 46s
e2e-tests chromium 1 of 10	2m 46s
e2e-tests chromium 2 of 10	2m 9s
e2e-tests chromium 3 of 10	1m 33s
e2e-tests chromium 4 of 10	2m 35s
e2e-tests chromium 5 of 10	1m 36s
e2e-tests chromium 6 of 10	1m 28s
e2e-tests chromium 7 of 10	12m 14s
e2e-tests chromium 8 of 10	11m 8s
e2e-tests chromium 9 of 10	10m 39s
e2e-tests chromium 10 of 10	4m 43s
e2e-test	2s
merge-playwright-reports	2m 5s
	1h 24m 1s

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