add pipeline pause and resume functionalities

[PabloPardoGarcia]

No description provided.

[github-actions]

Test Coverage Report

File	Stmts	Miss	Cover	Missing
etl
__init__.py	5	0	100%
api_client.py	44	3	93%	68–69, 83
client.py	37	4	89%	59–61, 125
dlq.py	33	2	93%	45, 70
errors.py	19	0	100%
pipeline.py	133	7	94%	293–296, 309, 364–365
tracking.py	26	0	100%
etl/models
__init__.py	7	0	100%
base.py	10	1	90%	10
config.py	34	8	76%	37, 40–41, 43–45, 47–48
data_types.py	57	0	100%
join.py	45	1	97%	44
pipeline.py	112	9	91%	67, 72, 76, 92, 111, 133, 152, 165, 173
sink.py	39	0	100%
source.py	111	5	95%	57, 70, 103, 108, 135
TOTAL	712	40	94%