Updated classify single functional test for intended behaviour

[carlpatchett-crispthinking]

This pull request updates the test logic in test_classify_single.py to account for the non-deterministic presence of the WebIQ hash check due to its 250ms execution budget. The test now only asserts the correctness of the classification when a "KnownCSAM-" label is present, rather than requiring its presence.

Test logic improvements:

• Updated the test to remove the requirement that a "KnownCSAM-" classification must always be present, reflecting that the hash check may be skipped if it exceeds its time budget. Now, the test only asserts that if a "KnownCSAM-" classification is present, its weight must be 0.0.

[tcarroll-kroll]

Why have you changed uv.lock?