Improved error handling

[ddl-joyce-zhao]

Description

Improved error handling while getting data sources.

Related Issue

https://dominodatalab.atlassian.net/browse/DOM-48640

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've read the CONTRIBUTING.md guide.
• I've updated the code style using make codestyle.
• I've written tests for all new methods and classes that I created.
• I've written the docstring in Google format for all the methods and classes that I used.

[github-actions]

✅ Result of Pytest Coverage

---------- coverage: platform linux, python 3.8.17-final-0 -----------

Name	Stmts	Miss	Cover
domino_data/init.py	7	2	71%
domino_data/_feature_store/init.py	0	0	100%
domino_data/_feature_store/client.py	41	3	93%
domino_data/_feature_store/exceptions.py	9	0	100%
domino_data/_feature_store/git.py	43	1	98%
domino_data/_feature_store/logging.py	7	0	100%
domino_data/_feature_store/run.py	16	16	0%
domino_data/_feature_store/sync.py	98	9	91%
domino_data/auth.py	84	12	86%
domino_data/configuration_gen.py	213	0	100%
domino_data/data_sources.py	277	24	91%
domino_data/logging.py	10	0	100%
domino_data/training_sets/init.py	0	0	100%
domino_data/training_sets/client.py	126	10	92%
domino_data/training_sets/model.py	42	0	100%
domino_data/transfer.py	37	0	100%
TOTAL	1010	77	92%
=======================	61	passed,	2

[ddl-aj-rossman]

LGTM