fix parse_datetime_ranges

[aspeddro]

Depois de #931 apareceu alguns erros devido a alterações nas respostas do backend.

Log de erro de br_ibge_ipca15.mes_categoria_municipio

Task 'check_for_updates': Exception encountered during task execution!
Traceback (most recent call last):
  File "/opt/venv/lib/python3.10/site-packages/prefect/engine/task_runner.py", line 876, in get_task_run_state
    value = prefect.utilities.executors.run_task_with_timeout(
  File "/opt/venv/lib/python3.10/site-packages/prefect/utilities/executors.py", line 454, in run_task_with_timeout
    return task.run(*args, **kwargs)  # type: ignore
  File "/home/runner/work/pipelines/pipelines/pipelines/utils/crawler_ibge_inflacao/tasks.py", line 131, in check_for_updates
  File "/opt/venv/lib/python3.10/site-packages/pipelines/utils/metadata/utils.py", line 648, in get_api_most_recent_date
    coverages = get_coverage_value(
  File "/opt/venv/lib/python3.10/site-packages/pipelines/utils/metadata/utils.py", line 486, in get_coverage_value
    date_objects = parse_datetime_ranges(datetime_result, date_format)
  File "/opt/venv/lib/python3.10/site-packages/pipelines/utils/metadata/utils.py", line 554, in parse_datetime_ranges
    edges = datetime_result["allCoverage"]["edges"]
KeyError: 'edges'

[github-actions]

Tests	Skipped	Failures	Errors	Time
8	7 💤	0 ❌	0 🔥	12.764s ⏱️