fix: require logspark[json] to pull python-json-logger

[Kydoimos97]

Problem

LogSpark 0.10.2 (pinned in 6.0.5) requires python-json-logger for SparkJsonHandler. WrenchCL was pinning logspark>=0.10.2 without the [json] extra, so python-json-logger was not installed. Any ECS service running in deployment mode (which uses SparkJsonHandler for structured JSON logs) crashes on startup with:

ModuleNotFoundError: No module named 'pythonjsonlogger'
logspark.Types.Exceptions.MissingDependencyException: Missing required dependencies: python-json-logger

This caused model-input-builder-prep to exit code 1 inside the ai-pipeline Step Function, making every scheduled pipeline run fail. All other ECS services rebuilt at the same time will hit the same crash on their next invocation.

Fix

Changed logspark>=0.10.2 to logspark[json]>=0.10.2 so the JSON extra (and its python-json-logger transitive dependency) is always installed with WrenchCL.

End-user impact

Restores pipeline execution for all ECS services. Without this fix, every service rebuilt against WrenchCL 6.0.5 crashes at startup.

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