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* fix(uart): sleep retention

sets new flag from IDF 5.3 that causes error with Serial.begin(115200).

* fix(typo): typo and commentaries

* feat(uart): adds memset to make structure empty

* fix(uart): missing parentesis - typo

* ci(pre-commit): Apply automatic fixes

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Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>