build: enable auto merge strategy for pull requests #2197

Job	Run time
list	23s
workflow (build-cli)	1m 48s
workflow (devkit-core-tests)	1m 27s
workflow (devkit-core-tests-rerun)	1m 33s
workflow (build-unit-tests)	2m 33s
workflow (modules-builder-tests)	1m 57s
	9m 41s

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