fix: github workflow #16

Job	Run time
generate-matrix	14s
build-firmware (mazduino-mega100, boards/mazduino-mega100/meta-info.env)	3m 51s
build-firmware (mazduino-mini6ch, boards/mazduino-mini6ch/meta-info.env)	3m 53s
build-firmware (mazduino-compact, boards/mazduino-compact/meta-info.env)	3m 43s
build-firmware (mazduino-lite, boards/mazduino-lite/meta-info.env)	3m 36s
build-firmware (mazduino-mega100-512, boards/mazduino-mega100-512/meta-info.env)	4m 9s
	19m 26s

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