SIENTIAPDE-1478

Update coverage source in pyproject.toml, add testcontainers for PostgreSQL in requirements-dev.txt, increment image tag and adjust probe delays in values.yaml, and refine condition checks in format_and_export_prediction.py and mlflow.py. Additionally, enhance test coverage in test_gates.py.

pyproject.toml

@@ -123,7 +123,7 @@ markers = [
 ]
 
 [tool.coverage.run]
-source = ["model_manager"]
+source = ["laborious"]
 omit = [
     "*/tests/*",
     "*/venv/*",