Fix: message-id in postprocessor/gelf-chunking #7197

Job	Run time
connectors-linux (tremor-connectors)	5m 54s
connectors-linux (tremor-connectors-aws)	2m 35s
connectors-linux (tremor-connectors-azure)	2m 17s
connectors-linux (tremor-connectors-gcp)	2m 43s
connectors-linux (tremor-connectors-otel)	2m 35s
tests-linux (tremor-api)	3m 20s
tests-linux (tremor-codec)	1m 51s
tests-linux (tremor-common)	1m 5s
tests-linux (tremor-influx)	1m 54s
tests-linux (tremor-interceptor)	2m 28s
tests-linux (tremor-pipeline)	2m 14s
tests-linux (tremor-script)	5m 0s
tests-linux (tremor-value)	1m 38s
tests-linux (tremor-system)	2m 11s
tests-linux (tremor-runtime)	3m 33s
tests-linux (tremor-connectors-object-storage)	1m 57s
tests-linux (tremor-connectors-test-helpers)	1m 6s
Connector Tests	1s
Core Tests	1s
Tests	1s
	44m 24s

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