samples: drivers: adc: adc_dt: allow nucleo_h753zi to run in CI

enable sample to run in CI on nucleo_h753zi.

Signed-off-by: Fabrice DJIATSA <[email protected]>

Author: djiatsaf-st

samples/drivers/adc/adc_dt/sample.yaml

@@ -7,6 +7,7 @@ tests:
     depends_on: adc
     platform_allow:
       - nucleo_l073rz
+      - nucleo_h753zi
       - disco_l475_iot1
       - cc3220sf_launchxl
       - cc3235sf_launchxl