[DOP-34418] Add jobs ancesors for 'JOB' granularity

[TiGrib]

Change Summary

For lineage request with granularity JOB, the response now includes job ancestor relations in the ancestors field (job→job chains), in addition to the existing run→run ancestors for RUN/OPERATION granularity.

Related issue number

[DOP-34418]

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/server/services
lineage.py	493	22	202	11	95%	86, 104, 262, 293, 469, 499, 635, 666, 739–741, 756, 1162, 1227, 1315, 1317–1320, 1362–1364
TOTAL	7659	955	1202	209	87%