handling error edge case in discover_schema dalgo api

[Ishankoradia]

This was observerd in the schema change bug and sentry triggered an error for not handling this.

[codecov]

Codecov Report

Attention: Patch coverage is 22.22222% with 7 lines in your changes missing coverage. Please review.

Project coverage is 72.68%. Comparing base (90fb018) to head (37711da).

Files	Patch %	Lines
ddpui/ddpairbyte/airbyte_service.py	22.22%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #793      +/-   ##
==========================================
- Coverage   72.73%   72.68%   -0.06%     
==========================================
  Files         182      182              
  Lines        7362     7369       +7     
==========================================
+ Hits         5355     5356       +1     
- Misses       2007     2013       +6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.