fix: prevent write_to_file from creating files at truncated paths #20829

Job	Run time
check-translations	36s
compile	2m 23s
platform-unit-test (ubuntu-latest)	5m 38s
knip	52s
platform-unit-test (windows-latest)	9m 45s
check-openrouter-api-key	2s
integration-test	3m 9s
	22m 25s

Provide feedback