Reduce integration test retries

[robbycochran]

Description

Problem

Integration tests taking unneeded time due to retries on operations involving removed containers, as well as unnecessarily long health checks and redundant cleanups.

Solution

• Implemented early exits in retry functions for remove, stop, and kill container operations if the container is no longer present based on the output message.
• Reduced collector health check wait time from 30s to 5s. This improves the common case where collector is healthy before 30 sec has elapsed.
• Eliminated redundant calls to collector cleanup functions.
• Corrected an error in the container name for jsonlabel, ending repeated cleanup retries.

Impact

Integration test suite execution time (including VM provisioning) decreased significantly, from approximately 77 minutes to 29 minutes, representing a ~2.75x speedup.

Checklist

• Investigated and inspected CI test results
• Updated documentation accordingly

Automated testing
- [ ] Added unit tests
- [ ] Added integration tests
- [ ] Added regression tests

Testing Performed

Tested locally and on CI with all tests labels

[Stringy]

That's a pretty incredible speed up, and for relatively few changes. LGTM! Thanks Robby!