Merge pull request #966 from pimoroni/examples-fix-adc #5445

Job	Run time
pico (RPI_PICO)	3m 54s
pico_usb (RPI_PICO_USB)	3m 28s
picow (RPI_PICO_W)	3m 59s
tiny2040_8mb (PIMORONI_TINY2040)	3m 31s
picolipo_4mb (PIMORONI_PICOLIPO_4MB)	3m 47s
picolipo_16mb (PIMORONI_PICOLIPO_16MB)	4m 38s
tufty2040 (PIMORONI_TUFTY2040)	3m 33s
enviro (PICO_W_ENVIRO)	4m 18s
galactic_unicorn (RPI_PICO_W)	4m 38s
cosmic_unicorn (RPI_PICO_W)	4m 0s
stellar_unicorn (RPI_PICO_W)	3m 41s
inky_frame (PICO_W_INKY)	4m 4s
	47m 31s

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