Upgrade vendored cloudpickle to 3.1 #10753

Job	Run time
Check minimal container dependencies for 3.9 / 2024.04	24s
Unit tests on 3.9 and ubuntu-20.04 (protobuf=latest)	10m 5s
Check minimal container dependencies for 3.12 / 2024.04	27s
Unit tests on 3.10 and ubuntu-20.04 (protobuf=latest)	9m 40s
Check minimal container dependencies for 3.9 / 2024.10	22s
Unit tests on 3.11 and ubuntu-20.04 (protobuf=latest)	8m 19s
Check minimal container dependencies for 3.13 / 2024.10	25s
Unit tests on 3.12 and ubuntu-20.04 (protobuf=latest)	10m 2s
Unit tests on 3.13 and ubuntu-20.04 (protobuf=latest)	9m 27s
Unit tests on 3.10 and macos-13 (protobuf=latest)	12m 11s
Unit tests on 3.10 and macos-14 (protobuf=latest)	9m 0s
Update changelog and client version	0s
Unit tests on 3.10 and windows-latest (protobuf=latest)	11m 3s
Unit tests on 3.9 and ubuntu-20.04 (protobuf=3.19)	10m 0s
Publish client package	0s
Publish base images for ${{ matrix.image-name }} ${{ matrix.image-builder-version }}	0s
	1h 31m 25s

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