Reduce flakiness of signal handling tests #4247
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End-to-end tests for signal handling depend on availability of deployments, which may be affected by other running test suites, as is the case of the Fleet agent with pod disruption budgets and priority classes.
Therefore, signal handling tests now retry killing a deployment if that deployment or its targeted container is not available.
Refers to #4246.
Additional Information
Checklist
- [ ] I have updated the documentation via a pull request in thefleet-docs repository.