Disable antithesis assertion for number of changes #1388

Job	Run time
lint (aarch64-apple-darwin, macos-15)	4m 42s
Test (x86_64-unknown-linux-gnu, ubuntu-latest)	8m 42s
lint (x86_64-unknown-linux-gnu, ubuntu-24.04)	5m 18s
Test (aarch64-apple-darwin, macos-latest)	14m 6s
Build book	32s
	33m 20s

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