Update Eigen to commit:5610a13b7767a94e063342277e0b9de4de13be57

CHANGELOG
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5610a13b7 - Simplify and speed up pow() by 5-6%
6c6ce9d06 - Enable vectorized erf<double>(x) for SSE and AVX, which was accidentally removed in merge request 1750.

PiperOrigin-RevId: 698667782
Change-Id: I9900a2805733da008786803884383647f84347b0
3 files changed