Add tolerances in deserialization

[palday]

Turns out that floating point is hard. :)

• add entry in NEWS.md
• after opening this PR, add a reference and run docs/NEWS-update.jl to update the cross-references.
• I've bumped the version appropriately

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.03% 🎉

Comparison is base (8d71961) 95.68% compared to head (2d58011) 95.72%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #703      +/-   ##
==========================================
+ Coverage   95.68%   95.72%   +0.03%     
==========================================
  Files          35       35              
  Lines        3225     3226       +1     
==========================================
+ Hits         3086     3088       +2     
+ Misses        139      138       -1     

Flag	Coverage Δ
current	95.72% <100.00%> (+0.03%)	⬆️
minimum	95.61% <100.00%> (+0.03%)	⬆️
nightly	95.72% <100.00%> (?)

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Files Changed	Coverage Δ
src/serialization.jl	93.75% <100.00%> (+3.12%)	⬆️

... and 1 file with indirect coverage changes

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