Re-add battery text-sensor #19

Job	Run time
Create common environment	13s
Run script/ci-custom	23s
Check clang-format	25s
Check black	15s
Check flake8	12s
list-components	6s
Check pylint	1m 25s
Run pytest (3.9, ubuntu-latest)	20s
Check pyupgrade	16s
Run pytest (3.10, ubuntu-latest)	1m 21s
Run pytest (3.11, ubuntu-latest)	53s
Run pytest (3.11, macOS-latest)	3m 29s
Run pytest (3.11, windows-latest)	2m 25s
Run pytest (3.12, ubuntu-latest)	1m 20s
Component test ${{ matrix.file }}	0s
Split components for testing into 20 groups maximum	0s
Test split components	0s
Run script/clang-tidy for ESP8266	2m 57s
Run script/clang-tidy for ESP32 Arduino 1/4	9m 19s
Run script/clang-tidy for ESP32 Arduino 2/4	9m 5s
Run script/clang-tidy for ESP32 Arduino 3/4	8m 19s
Run script/clang-tidy for ESP32 Arduino 4/4	9m 23s
Run script/clang-tidy for ESP32 IDF	2m 58s
CI Status	1s
	55m 5s

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