DEV: Bump codecov/codecov-action from 4 to 5 #5595

Job	Run time
Check code style issues	33s
Build & verify package	13s
pytest on windows	6m 43s
pytest on 3.8 (crypto-lib: cryptography)	5m 7s
pytest on 3.9 (crypto-lib: cryptography)	5m 26s
pytest on 3.10 (crypto-lib: cryptography)	5m 18s
pytest on 3.11 (crypto-lib: cryptography)	5m 0s
pytest on 3.12 (crypto-lib: cryptography)	6m 41s
pytest on 3.13 (crypto-lib: cryptography)	6m 51s
pytest on 3.8 (crypto-lib: pycryptodome)	5m 25s
pytest on 3.8 (crypto-lib: none)	5m 31s
Combine & check coverage.	17s
	53m 5s

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