#3157 Fix degeneracy check for resize transforms

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Description

Fixes #3156

Use exact zero determinant checks in TransformUtilities.IsDegenerate for Matrix3x2 and Matrix4x4 instead of epsilon-based near-zero detection, preventing valid transforms from being treated as degenerate during extreme downscales. Added a regression test for issue #3156 to verify resizing large square images (1024/2048) to 1x1 succeeds and preserves the expected pixel.