Enable buildmode 'pie'

[lukasmalkmus]

• Enable buildmode pie for all platforms expect linux/386 (not supported)
• While at it, build binaries for new M1 Macs by enabling darwin/amd64

[codecov[bot]]

Codecov Report

Merging #50 (0fdc973) into main (fe13a05) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #50   +/-   ##
=======================================
  Coverage   10.54%   10.54%           
=======================================
  Files          10       10           
  Lines         721      721           
=======================================
  Hits           76       76           
  Misses        629      629           
  Partials       16       16           

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