Compressed dashboard is 10 times smaller yet has all the data to
render flakiness.
Drive-by: remove old dashboard implementations since they are no
longer used.
Computing V1 flakiness dashboard was very expensive (>1 minute for AZ
function to run).
Disable it now in favor of V2 flakiness dashboard that proves to be very
reliable.
This patch:
- starts processing dashboards serially to avoid hitting node.js azure
function heap limit
- fixes typo in the new `dashboards_raw` processor
This refactors azure function and adds a new dashboard format implementation that is 15x smaller while tracking specs with non-empty annotations.
Old dashboard is still updated.
