chore: updated vendored igraph #1776

Job	Run time
Build wheels on Linux (aarch64/manylinux)	15m 35s
Build wheels on Linux (i686)	19m 58s
Build wheels on Linux (aarch64/musllinux)	6m 37s
Build wheels on Linux (x86_64)	25m 33s
Build sdist and test extra dependencies	3m 28s
Build with sanitizers for debugging purposes	2m 56s
Build wheels on macOS (arm64)	9m 43s
Build wheels on macOS (x86_64)	18m 45s
Build wheels on Windows (Win32)	10m 20s
Build wheels on Windows (ARM64)	16m 13s
Build wheels on Windows (x64)	28m 9s
Build wheels for WebAssembly	6m 33s
	2h 43m 50s

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