[BUG] test failure for `truncerr` with `ComplexF32`

[ogauthe]

test_matrixalgebra.jl currently fails, it seems the truncation keeps a value that is well below its cut.

using LinearAlgebra: Diagonal, diag, norm
using MatrixAlgebraKit: qr_compact, svd_trunc
using StableRNGs: StableRNG
using TensorAlgebra.MatrixAlgebra: truncerr
using Test: @test, @test_broken

elt = ComplexF32
s = Diagonal(real(elt)[1.2, 0.9, 0.3, 0.2, 0.01])
n = length(diag(s))
rng = StableRNG(123)
u, _ = qr_compact(randn(rng, elt, n, n); positive=true)
v, _ = qr_compact(randn(rng, elt, n, n); positive=true)
a = u * s * v
ũ, s̃, ṽ = svd_trunc(
    a; trunc=truncerr(; atol=(norm(diag(s)) * (one(real(elt)) + eps(real(elt)))))
  )
@test_broken size(ũ) == (n, 0)
@test_broken all(s̃ .> (norm(diag(s)) * (one(real(elt)) + eps(real(elt)))))

This is specific to ComplexF32, all Complex64, Float64, Float32 are fine.

TensorAlgebra version 0.3.10, HEAD at d02ca66249eef72621aec5b24e5be09dbf96fd00
MatrixAlgebraKit v0.2.5