telemetry: report heartbeat metrics as JSON numbers#3802

Merged

cce merged 8 commits intoalgorand:masterfrom cce:heartbeat-json-numbers

Apr 12, 2022

Commits on Mar 18, 2022

report heartbeat metrics as JSON numbers
cce
committed

Commits on Mar 19, 2022

add test to assert JSON serialization
cce
committed

Commits on Mar 21, 2022

Merge remote-tracking branch 'upstream/master' into heartbeat-json-numbers
cce
committed