ci: Build Docker for `arm64` arch #617

Job	Run time
Settings / settings	1s
Lint / Lint	12s
Official Docker image / Build	2h 1m 22s
Test Linux distros / Matrix configuration	4s
Build and test / Matrix configuration	4s
Build docs / Build docs	33s
Test Linux distros / Alpine	12m 20s
Test Linux distros / ArchLinux	11m 41s
Test Linux distros / CentOS	10m 34s
Test Linux distros / Debian	11m 25s
Test Linux distros / Fedora	10m 12s
Test Linux distros / OpenSUSE	10m 48s
Test Linux distros / Ubuntu	9m 52s
Build and test / linux x64 Debug static	9m 28s
Build and test / linux x64 Debug shared	10m 25s
Build and test / linux x64 Release static	13m 13s
Build and test / linux x64 Release shared	10m 39s
Build and test / osx x64 Debug static	27m 57s
Build and test / osx x64 Debug shared	39m 7s
Build and test / osx x64 Release static	10m 42s
Build and test / osx x64 Release shared	11m 42s
Build and test / osx arm64 Debug static	20m 34s
Build and test / osx arm64 Debug shared	20m 19s
Build and test / osx arm64 Release static	6m 26s
Build and test / osx arm64 Release shared	7m 20s
Build and test / win x64 Debug static	15m 4s
Build and test / win x64 Debug shared	14m 46s
Build and test / win x64 Release static	17m 42s
Build and test / win x64 Release shared	17m 41s
Build and test / linux arm64 Debug static	11m 26s
Build and test / linux arm64 Debug shared	11m 43s
Build and test / linux arm64 Release static	41m 35s
Build and test / linux arm64 Release shared	11m 12s
	8h 48m 9s

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