Add a battery charging sensor to demo device (#173219) #2789

Job	Run time
Collect information & changes data	19s
Prepare dependencies (3.14.5)	1m 11s
Check Dockerfile	17s
Run prek checks	1m 40s
Check GitHub Actions workflows	18s
Check Dockerfile.dev	17s
Check script/hassfest/docker/Dockerfile	18s
Check copilot instructions	16s
Audit licenses (3.14.5)	32s
Check all requirements	34s
Check pylint on tests	8m 36s
Check hassfest	1m 5s
Check mypy	36s
Check pylint	10m 23s
Split tests for full run	0s
Dependency review	0s
Run tests Python ${{ matrix.python-version }} (${{ matrix.group }})	0s
Run tests Python ${{ matrix.python-version }} (${{ matrix.group }})	0s
Run ${{ matrix.postgresql-group }} tests Python ${{ matrix.python-version }}	0s
Run ${{ matrix.mariadb-group }} tests Python ${{ matrix.python-version }}	0s
Upload test results to Codecov	0s
Upload test coverage to Codecov (full suite)	0s
Upload test coverage to Codecov (partial suite)	0s
	26m 22s

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