Bump pyvips from 3.0.0 to 3.1.1 #6861

Job	Run time
Build debian package (focal)	4m 8s
Build docker image	3m 44s
Python Unittests (focal-3.10, tests_nds)	8m 56s
Python Unittests (noble-3.12, tests_nds)	8m 35s
Build debian package (noble)	5m 22s
Python Unittests (jammy-3.10, tests_nds)	8m 36s
Build debian package (jammy)	6m 37s
Python Unittests (focal-3.10, tests)	8m 48s
Python Unittests (jammy-3.10, tests)	8m 16s
Python Unittests (noble-3.12, tests)	8m 46s
Tests E2E docker	7m 54s
Tests E2E debian package (noble)	6m 44s
Tests E2E debian package (jammy)	7m 38s
Upload coverage to codecov (noble-3.12, tests_nds)	9s
Upload coverage to codecov (noble-3.12, tests)	10s
Upload coverage to codecov (focal-3.10, tests_nds)	10s
Upload coverage to codecov (focal-3.10, tests)	13s
Upload coverage to codecov (jammy-3.10, tests)	11s
Upload coverage to codecov (jammy-3.10, tests_nds)	12s
Publish (on release only)	0s
	1h 35m 9s

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