use gha-dart-oss #8

Job	Run time
format	11s
unit tests (release)	4m 37s
unit tests (dev)	2m 53s
checks / analyze	21s
build / sbom	22s
checks / dependency-validator	24s
checks / analyze-additional-checks	0s
checks / format	0s
checks / validate-publish	13s
checks / additional-checks	0s
	9m 1s

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