add: ignore warnings on structural unittests (#834) #1810

Job	Run time
Build wheels on macOS (arm64)	8m 58s
Build wheels on macOS (x86_64)	9m 17s
Build wheels on Linux (aarch64/manylinux)	17m 18s
Build wheels on Linux (aarch64/musllinux)	7m 14s
Build with sanitizers for debugging purposes	2m 21s
Build wheels on Linux (i686)	20m 14s
Build wheels on Linux (x86_64)	25m 20s
Build sdist and test extra dependencies	2m 51s
Build wheels for WebAssembly	6m 59s
Build wheels on Windows (x64)	34m 31s
Build wheels on Windows (Win32)	8m 27s
Build wheels on Windows (ARM64)	17m 53s
	2h 41m 23s

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