ci: create gemini code reviewer configuration #3170

Job	Run time
list	21s
workflow (devkit-core-tests-rerun)	1m 25s
workflow (devkit-core-tests)	1m 32s
workflow (build-cli)	1m 52s
workflow (build-unit-tests)	2m 40s
workflow (modules-builder-tests)	1m 59s
	9m 49s

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