ENH: Adding support for reading .metadata.keywords (#2939) #5589

Job	Run time
Check code style issues	34s
Build & verify package	18s
pytest on windows	6m 14s
pytest on 3.8 (crypto-lib: cryptography)	5m 22s
pytest on 3.9 (crypto-lib: cryptography)	5m 18s
pytest on 3.10 (crypto-lib: cryptography)	5m 11s
pytest on 3.11 (crypto-lib: cryptography)	4m 54s
pytest on 3.12 (crypto-lib: cryptography)	6m 31s
pytest on 3.13 (crypto-lib: cryptography)	7m 9s
pytest on 3.8 (crypto-lib: pycryptodome)	5m 28s
pytest on 3.8 (crypto-lib: none)	5m 37s
Combine & check coverage.	16s
	52m 52s

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