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Revert "FROMPULL: arch: arm: cortex_m: move _main in input list" #276

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Job	Run time
build (ubuntu-22.04)	11m 39s
build (ubuntu-24.04)	8m 28s
build (macos-13)	15m 9s
build (macos-14)	8m 40s
build (windows-2022)	15m 12s
	59m 8s