Test for open aq retries

[rstrange-scottlogic]

This includes some new integration tests to check the retry functionality with open aq timeouts. This also drops the number of timeouts from 3 to 2.

[github-actions[bot]]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
773	726	94%	80%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
air-quality-backend/src/air_quality/etl/in_situ/openaq_dao.py	93%	🟢
TOTAL	93%	🟢

updated for commit: ec2b7dc by action🐍