Use tini as container entrypoint

[mormahr]

Fixes #132

[codecov]

Codecov Report

Merging #134 (23a296d) into main (454e8eb) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #134   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            5         5           
  Lines          104       104           
=========================================
  Hits           104       104           

Flag	Coverage Δ
unit	100.00% <ø> (ø)

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