fix: return integer for create_timestamp time extraction

[rabbitz]

No description provided.

[codecov-commenter]

Codecov Report

Attention: 249 lines in your changes are missing coverage. Please review.

Comparison is base (bb447e4) 66.37% compared to head (fedbf84) 67.12%.
Report is 162 commits behind head on develop.

❗ Current head fedbf84 differs from pull request most recent head a77bb1b. Consider uploading reports for the commit a77bb1b to get more accurate results

Files	Patch %	Lines
app/workers/charts/ckb_hodl_waves_statistic.rb	0.00%	45 Missing ⚠️
...ib/tasks/migration/update_output_cells_status.rake	29.26%	29 Missing ⚠️
lib/tasks/migration/generate_referring_cells.rake	19.23%	21 Missing ⚠️
.../controllers/api/v1/ckb_transactions_controller.rb	39.28%	17 Missing ⚠️
app/workers/token_transfer_detect_worker.rb	10.52%	17 Missing ⚠️
...ib/tasks/migration/async_missing_transactions.rake	15.78%	16 Missing ⚠️
app/workers/contract_statistic_worker.rb	0.00%	15 Missing ⚠️
app/controllers/api/v2/scripts_controller.rb	69.76%	13 Missing ⚠️
app/models/ckb_sync/new_node_data_processor.rb	72.34%	13 Missing ⚠️
lib/scheduler.rb	0.00%	12 Missing ⚠️
... and 16 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1538      +/-   ##
===========================================
+ Coverage    66.37%   67.12%   +0.74%     
===========================================
  Files          275      285      +10     
  Lines         7397     7736     +339     
===========================================
+ Hits          4910     5193     +283     
- Misses        2487     2543      +56     

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[rabbitz]

When searching for a transaction to match an input cell with its corresponding output cell, two foreign keys can be utilized: previous_cell_output_id and consumed_by_id. The consumed_by_id is only present in transactions that have been committed.