Use hatch backend

[blink1073]

Hatch is newly added pypa backend with more flexibility, and helps avoid pypa/pip#11110, which is breaking builds.

[codecov-commenter]

Codecov Report

Merging #29 (cf1c3b3) into main (73d53ec) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #29   +/-   ##
=======================================
  Coverage   81.93%   81.93%           
=======================================
  Files           7        7           
  Lines         238      238           
  Branches       31       31           
=======================================
  Hits          195      195           
  Misses         33       33           
  Partials       10       10           

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