run CI on more julia versions

[KristofferC]

No description provided.

[codecov]

Codecov Report

Merging #22 (52a6aa3) into main (f520e06) will increase coverage by 0.50%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #22      +/-   ##
==========================================
+ Coverage   87.78%   88.29%   +0.50%     
==========================================
  Files           1        1              
  Lines         393      393              
==========================================
+ Hits          345      347       +2     
+ Misses         48       46       -2     

Impacted Files	Coverage Δ
src/DelimitedFiles.jl	88.29% <0.00%> (+0.50%)	⬆️

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