Fix sentence-case and naming of "Security code" in `tradfri` #247721

Job	Run time
Collect information & changes data	19s
Prepare dependencies (3.13)	28s
Prepare pre-commit base	13s
Check Dockerfile	13s
Check Dockerfile.dev	12s
Check script/hassfest/docker/Dockerfile	13s
Check other linters	24s
Check ruff-format	17s
Check ruff	18s
Check all requirements	19s
Check pylint	31s
Check hassfest	47s
Audit licenses	0s
Dependency review	0s
Check pylint on tests	26s
Check mypy	34s
Run tests Python 3.13 (tradfri)	1m 8s
Run ${{ matrix.postgresql-group }} tests Python ${{ matrix.python-version }}	0s
Run ${{ matrix.mariadb-group }} tests Python ${{ matrix.python-version }}	0s
Split tests for full run	0s
Run tests Python ${{ matrix.python-version }} (${{ matrix.group }})	0s
Upload test coverage to Codecov (full suite)	0s
Upload test coverage to Codecov (partial suite)	18s
Upload test results to Codecov	0s
	6m 40s

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