Elixir CI

Merge pull request #95 from hauleth/feat/make-library-json-implementa… #480

# to view logs

Run time

Learn about OS # on GitHub Actions

Job	Run time
build (1.14.1, 25)	1m 35s
build (1.15, 26)	1m 33s
build (1.16, 26)	1m 35s
build (1.17, 27, true)	1m 31s
	6m 14s