ci: add strict-no-cover to detect unnecessary coverage pragmas #282

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	42s
checks / test (3.10, lowest-direct, windows-latest)	2m 33s
checks / test (3.10, locked, ubuntu-latest)	47s
checks / test (3.10, locked, windows-latest)	2m 44s
checks / test (3.10, lowest-direct, ubuntu-latest)	55s
checks / test (3.12, locked, windows-latest)	3m 22s
checks / test (3.12, lowest-direct, ubuntu-latest)	55s
checks / test (3.11, lowest-direct, ubuntu-latest)	49s
checks / test (3.11, lowest-direct, windows-latest)	2m 43s
checks / test (3.12, lowest-direct, windows-latest)	3m 36s
checks / test (3.14, locked, windows-latest)	3m 56s
checks / test (3.11, locked, windows-latest)	2m 27s
checks / test (3.13, locked, windows-latest)	2m 32s
checks / test (3.11, locked, ubuntu-latest)	48s
checks / test (3.13, lowest-direct, ubuntu-latest)	52s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 20s
checks / test (3.14, lowest-direct, windows-latest)	2m 25s
checks / test (3.14, locked, ubuntu-latest)	2m 31s
checks / test (3.12, locked, ubuntu-latest)	55s
checks / test (3.13, locked, ubuntu-latest)	47s
checks / test (3.13, lowest-direct, windows-latest)	2m 57s
all-green	4s
	40m 53s

Provide feedback