feat: add DB_12 adc attenuation and deprecate DB_11 for ESP-IDF V5.0+

[j-g00da]

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Pull Request Details 📖

Description

ESP-IDF 5 deprecated ADC_ATTEN_DB_11 and introduced ADC_ATTEN_DB_12, I think we should reflect that.

Testing

[ivmarkov]

A tricky change for what is basically a rename of the flag. But - you took the effort, so many thanks! Merging.

(And sorry for reacting so late.)