Don't delete previous coverage comment (#653) #2299

Job	Run time
Run tests (3.9.12)	16s
Run tests (3.11)	14s
Run tests (3.9)	10s
Run tests (3.11.0)	19s
Run tests (3.10)	13s
Run tests (3.12)	19s
Run tests (3.10.4)	22s
Run tests (3.12.0)	18s
Run tests (3.13)	10s
Run tests (3.13.0)	17s
Run tests (pypy3.9)	15s
Run tests (3.14)	19s
Run tests (pypy3.11)	12s
Run tests (pypy3.10)	10s
Report coverage	17s
Create an issue if daily tests failed	-1s
	3m 50s

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