Need to improve debug logging

[SilverPreeceSOF]

When an issue is encountered with the runner, it is nearly impossible to diagnose what is wrong because almost all useful output is being suppressed. As an example, I am trying to diagnose an AVD creation issue with the following configuration:

      - name: Run Tests in Emulator
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 27
          target: 'default'
          profile: 'Nexus 5'
          force-avd-creation: 'true'
          sdcard-path-or-size: 64MB
          script: |
            adb wait-for-device
            adb push configs/details.json /sdcard
            adb install -r *.apk
            robot test-cases/HomeComponentsTest.robot

Looking at the error logs, I can see that the AVD is not being created:

Creating AVD.
  /usr/bin/sh -c \echo no | avdmanager create avd --force -n test --abi 'default/x86' --package 'system-images;android-27;default;x86' --device 'Nexus 5' --sdcard '64MB'
  Loading local repository...                                                     
  [=========                              ] 25% Loading local repository...       
  [=========                              ] 25% Fetch remote repository...        
  [=======================================] 100% Fetch remote repository...       
  Error: AVD not created.
  null

However, this is as far as I can go with diagnosis, because when I turn on debug logging the output is identical. Looking again at the commands being run, they all send their output to the void:

/usr/bin/sh -c \yes | sdkmanager --licenses > /dev/null
/usr/bin/sh -c \sdkmanager --install 'build-tools;35.0.0' platform-tools 'platforms;android-27'> /dev/null
/usr/bin/sh -c \sdkmanager --install emulator --channel=0 > /dev/null
/usr/bin/sh -c \sdkmanager --install 'system-images;android-27;default;x86' --channel=0 > /dev/null
/usr/bin/sh -c \echo no | avdmanager create avd --force -n test --abi 'default/x86' --package 'system-images;android-27;default;x86' --device 'Nexus 5' --sdcard '64MB'

This makes diagnosis of issues incredibly difficult. Did I make an error in my config? Did I select an incompatible set of profile, API level, etc? I have no idea. It would be much better if the action would detect debug mode in GitHub and output full logging if it is switched on.