remove julia 1.0 from CI test matrix

[ellisbrown]

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (main@3a697c9). Click here to learn what that means.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main       #4   +/-   ##
=======================================
  Coverage        ?   96.33%           
=======================================
  Files           ?        4           
  Lines           ?      218           
  Branches        ?        0           
=======================================
  Hits            ?      210           
  Misses          ?        8           
  Partials        ?        0           

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