Disable antithesis assertion for number of changes #1396

Job	Run time
Build book	26s
lint (aarch64-apple-darwin, macos-15)	7m 10s
Test (x86_64-unknown-linux-gnu, ubuntu-latest)	8m 21s
Test (aarch64-apple-darwin, macos-latest)	13m 31s
lint (x86_64-unknown-linux-gnu, ubuntu-24.04)	5m 36s
	35m 4s

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