Julia v1.7 support

[dlfivefifty]

No description provided.

[codecov]

Codecov Report

Merging #83 (739dbb5) into master (845cd57) will increase coverage by 2.33%.
The diff coverage is 90.00%.

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
+ Coverage   82.56%   84.89%   +2.33%     
==========================================
  Files           4        4              
  Lines         625      609      -16     
==========================================
+ Hits          516      517       +1     
+ Misses        109       92      -17     

Impacted Files	Coverage Δ
src/infrange.jl	86.52% <87.50%> (+0.60%)	⬆️
src/InfiniteArrays.jl	86.04% <100.00%> (+12.21%)	⬆️

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