github: add arm builds

[neolynx]

Fixes #1199, #960, #1108

Requirements

All new code should be covered with tests, documentation should be updated. CI should pass.

Description of the Change

• replace goxc and use go directly for debian builds
• debianize and use dpkg-buildpackage for building debian packages
• read go version from go.mod
• read package version from debian/changelog
• build FreeBSD, MacOS and Linux separately

TODO

• cleanup debian package / service
  • zsh completion
• be compatible with official debian package (switching without loosing config/data)
• CI prod release use dpkg-buildpackage
• Include /usr/local/etc/aptly.conf on FreeBSD #1108

[codecov]

Codecov Report

Attention: Patch coverage is 86.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 74.51%. Comparing base (9591548) to head (88b9513).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
s3/public.go	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1286      +/-   ##
==========================================
- Coverage   74.51%   74.51%   -0.01%     
==========================================
  Files         150      150              
  Lines       16994    16997       +3     
==========================================
+ Hits        12663    12665       +2     
- Misses       3322     3323       +1     
  Partials     1009     1009              

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[neolynx]

goxc does not seem to build for arm64:

ls -l build/
total 168736
-rw-r--r-- 1 root root 17893770 Apr 21 17:19 aptly_1.5.0+113+g6619f929_amd64.deb
-rw-r--r-- 1 root root 16546322 Apr 21 17:19 aptly_1.5.0+113+g6619f929_armhf.deb
-rw-r--r-- 1 root root 18089983 Apr 21 17:19 aptly_1.5.0+113+g6619f929_darwin_amd64.zip
-rw-r--r-- 1 root root 17016974 Apr 21 17:19 aptly_1.5.0+113+g6619f929_freebsd_386.zip
-rw-r--r-- 1 root root 17883988 Apr 21 17:19 aptly_1.5.0+113+g6619f929_freebsd_amd64.zip
-rw-r--r-- 1 root root 17057506 Apr 21 17:19 aptly_1.5.0+113+g6619f929_i386.deb
-rw-r--r-- 1 root root 17049372 Apr 21 17:19 aptly_1.5.0+113+g6619f929_linux_386.tar.gz
-rw-r--r-- 1 root root 17887161 Apr 21 17:19 aptly_1.5.0+113+g6619f929_linux_amd64.tar.gz
-rw-r--r-- 1 root root 16539569 Apr 21 17:19 aptly_1.5.0+113+g6619f929_linux_arm.tar.gz
-rw-r--r-- 1 root root 16802958 Apr 21 17:19 aptly_1.5.0+113+g6619f929_linux_arm64.tar.gz

-> depends on #1287

[neolynx]

replaced by #1339