ci: introduce CI #1

Job	Run time
Formatter	2m 30s
Test (elixir-lang/elixir)	2m 25s
Test (elixir-ecto/ecto)	2m 26s
Test (elixir-ecto/ecto_sql)	2m 26s
Test (phoenixframework/phoenix)	2m 23s
Test (phoenixframework/phoenix_live_view)	2m 26s
Test (elixir-tools/next-ls)	2m 23s
Test (elixir-tools/gen_lsp)	2m 25s
Test (michalmuskala/jason)	2m 24s
Test (beam-telmetry/telemetry)	2m 30s
Test (elixir-plug/plug)	2m 23s
Test (ericmj/decimal)	2m 21s
Test (elixir-gettext/gettext)	2m 22s
Test (rrrene/credo)	2m 24s
Test (wojtekmac/req)	2m 19s
Test (bitwalker/timex)	2m 30s
Test (mtrudel/bandit)	2m 26s
Test (witchcrafters/witchcraft)	2m 24s
Test (witchcrafters/typeclass)	2m 25s
Test (witchcrafters/quark)	2m 23s
	48m 15s

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