[DOP-33903] Extract and save jobDependencies facet

[dolfinus]

Change Summary

Extract information from jobDependencies facet, and store it in job_dependency table. For now dependency_type field is extracted as-is, and other fields (like sequence_trigger_rule or status_trigger_rule) are ignored for now.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[github-actions]

Coverage Report •

File	Stmts	Miss	Branch	BrPart	Cover	Missing
data_rentgen/consumer
saver.py	164	13	50	4	92%	42–43, 187–193, 195–196, 199–200
data_rentgen/consumer/extractors/impl
airflow_task.py	127	1	44	2	99%	96
hive.py	47	8	16	9	82%	97, 100–106
data_rentgen/db/migrations/versions
2026-03-06_4e119cb7481e_add_job_dependency_table.py	10	10	0	0	0%	11–12, 15–18, 21–22, 43–44
data_rentgen/dto
run.py	69	5	8	4	92%	30, 62, 74–75, 77
data_rentgen/openlineage/run_facets
airflow.py	48	2	4	0	95%	43, 106
TOTAL	7806	969	1226	212	87%