The test "re-encodes smaller until the thumbnail fits the recorded size"
built a noisy 400x300 JPEG and encoded it several times, which took close
to the 5 s test limit and timed out on a busy host. It now uses a noisy
64x48 JPEG. The recorded size is still one byte less than the default
quality-50 encoding, so the first encoding still cannot fit and the test
still proves that quak re-encodes smaller until it fits. Every assertion
is unchanged.
Model: opus-5-5