Relax test from == to ≈

[mzgubic]

Nightly has been failing

[codecov]

Codecov Report

Merging #87 (6e36f23) into master (bd411ad) will decrease coverage by 0.19%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #87      +/-   ##
==========================================
- Coverage   96.09%   95.89%   -0.20%     
==========================================
  Files           5        5              
  Lines         333      317      -16     
==========================================
- Hits          320      304      -16     
  Misses         13       13              

Impacted Files	Coverage Δ
src/blockdiagonal.jl	85.93% <0.00%> (-0.63%)	⬇️
src/linalg.jl	95.18% <0.00%> (-0.23%)	⬇️
src/base_maths.jl	100.00% <0.00%> (ø)

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