[deps] Update dependency pytest to v9 (#13195) #10944

Job	Run time
License check / License check	3m 13s
Build image / Build OpenCTI Worker image	1m 1s
Build image / Build OpenCTI Platform image	3m 32s
Frontend / Verify translation	18s
Frontend / Unit tests	10m 7s
Frontend / e2e tests	25m 59s
Backend / Unit tests	4m 8s
Client Python / pycti test - python 3.10	8m 7s
Backend / Rules and Taxii tests	11m 45s
Client Python / pycti test - python 3.12	7m 36s
Client Python / pycti test - python 3.11	7m 47s
Backend / Integration tests	27m 24s
	1h 50m 57s

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