Support nightlies on ubuntu

[LilithHafner]

No description provided.

[codecov-commenter]

Codecov Report

Merging #13 (0665e2a) into main (67da58d) will increase coverage by 3.32%.
The diff coverage is 87.50%.

@@            Coverage Diff             @@
##             main      #13      +/-   ##
==========================================
+ Coverage   81.64%   84.96%   +3.32%     
==========================================
  Files           1        1              
  Lines         158      153       -5     
==========================================
+ Hits          129      130       +1     
+ Misses         29       23       -6     

Impacted Files	Coverage Δ
src/UpdateJulia.jl	84.96% <87.50%> (+3.32%)	⬆️

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[LilithHafner]

    # We have to extract to a temporary location instead of directly into 
    # install_location because we don't know what the name of the extracted folder is.
    # Specifically, on nightlies, it is julia-30fe8cc where 30fe8cc is the truncated 
    # commit hash, and we want it to be julia-DEV (or do we...!)