fix: average block time missing data

[shaojunda]

No description provided.

[codecov-commenter]

Codecov Report

Merging #695 into develop will increase coverage by 0.67%.
The diff coverage is 77.77%.

@@             Coverage Diff             @@
##           develop     #695      +/-   ##
===========================================
+ Coverage    88.60%   89.27%   +0.67%     
===========================================
  Files          121      121              
  Lines         3081     3069      -12     
===========================================
+ Hits          2730     2740      +10     
+ Misses         351      329      -22     

Impacted Files	Coverage Δ
app/models/cell_output.rb	100.00% <ø> (ø)
.../workers/address_average_deposit_time_generator.rb	0.00% <0.00%> (ø)
...orkers/address_unclaimed_compensation_generator.rb	0.00% <0.00%> (ø)
...s/dao_contract_unclaimed_compensation_generator.rb	0.00% <0.00%> (ø)
...pp/controllers/api/v1/dao_depositors_controller.rb	100.00% <100.00%> (ø)
app/models/address.rb	100.00% <100.00%> (ø)
app/models/ckb_sync/node_data_processor.rb	99.16% <100.00%> (ø)
app/services/charts/daily_statistic_generator.rb	91.04% <100.00%> (+0.49%)	⬆️
app/utils/ckb_utils.rb	93.02% <100.00%> (ø)
app/utils/dao_compensation_calculator.rb	100.00% <100.00%> (ø)
... and 6 more

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