Move `read_text` to executor #8258

Job	Run time
Prepare Python dependencies	12s
Check ruff	15s
Check executables	9s
Check Dockerfile	7s
Check JSON	9s
Check pylint	43s
Check ruff-format	10s
Run tests Python 3.13.2	2m 4s
Process test coverage	1s
	3m 50s

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