Add missing lines-covered and lines-valid attributes #13135

Job	Run time
Test suite with py38-ubuntu, mypyc-compiled	17m 31s
Test suite with Python nightly	14m 27s
Test suite with py38-windows-64	20m 3s
Test mypyc suite with 32-bit Python	6m 53s
Test suite with py39-ubuntu	19m 10s
Test suite with py310-ubuntu	15m 58s
Test suite with py311-ubuntu, mypyc-compiled	15m 55s
Test suite with py312-ubuntu, mypyc-compiled	17m 50s
mypyc runtime tests with py39-macos	4m 53s
mypyc runtime tests with py38-debug-build-ubuntu	4m 27s
Type check our own code (py38-ubuntu)	1m 49s
Type check our own code (py38-windows-64)	2m 20s
Formatting and code style with Black + ruff	36s
	2h 21m 52s

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