CAMEL-20009: Replace deprecated Exchange getOut/hasOut/setOut with getMessage API#22358

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gnodet:CAMEL-22549-clear-deprecation-warnings

Commits on Apr 8, 2026

CAMEL-22549: Replace deprecated getOut/hasOut/setOut with ExchangeHelper methods in core modules

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CAMEL-22549: Replace deprecated getOut/hasOut/setOut with ExchangeHelper methods in components

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CAMEL-22549: Add tests, update existing tests, and document upgrade guide

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