ESP32 Compile error when I2S_AUDIO is enabled

[Meek-HA]

Solves the compiling error with env:tasmota32 when I2s Audio is enabled:
#ifndef USE_I2S_AUDIO
#define USE_I2S_AUDIO
#endif

#ifdef USE_I2S_EXTERNAL_DAC
#undef USE_I2S_EXTERNAL_DAC
#endif

#ifndef USE_I2S_NO_DAC
#define USE_I2S_NO_DAC
#endif

Resolving the following compiling error:
tasmota/xdrv_42_i2s_audio.ino:326:11: error: invalid conversion from 'AudioOutputI2S*' to 'AudioOutputI2SNoDAC*' [-fpermissive]

Description:

Related issue (if applicable): fixes #

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.1.1
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass