DO NOT MERGE: test graceful OOM shutdown

[Patrick Nilan (pnilan)]

Summary

• Adds an intentional memory leak in AirbyteEntrypoint.read() to test the memory monitor's graceful shutdown behavior
• Each consumed record is duplicated 500x into a growing list to rapidly inflate memory
• Tests that the 85% warning log and 95% critical MemoryLimitExceeded exception fire correctly in a container

Test plan

• Deploy a connector using this branch in a memory-bounded container
• Observe warning log at ~85% memory usage
• Observe graceful shutdown with MemoryLimitExceeded at ~95%
• Verify queued messages are flushed in the finally block before exit

DO NOT MERGE — test-only change to validate memory monitor behavior.

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Testing This CDK Version

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# Run the CLI from this branch:
uvx 'git+https://github.com/airbytehq/airbyte-python-cdk.git@test/graceful-oom-shutdown#egg=airbyte-python-cdk[dev]' --help

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[Patrick Nilan (pnilan)]

/prerelease

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PyTest Results (Fast)

3 910 tests  ±0   3 898 ✅ ±0   6m 50s ⏱️ ±0s
    1 suites ±0      12 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit a17d00d. ± Comparison against base commit 5f7e16d.

[github-actions]

PyTest Results (Full)

3 913 tests  ±0   3 901 ✅ ±0   10m 40s ⏱️ -32s
    1 suites ±0      12 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit a17d00d. ± Comparison against base commit 5f7e16d.