Suppress warnings in Elixir 1.17 + improvements

[k-asm]

This PR contains below changes.

• Fix warnings in elixir 1.17 like:
  • using map.field notation (without parentheses) to invoke function ParamsTest.StringArray.__changeset__() is deprecated, you must add parentheses instead: remote.function()
  • use Mix.Config is deprecated
• Fix some tests failed in OTP 26+ due to map key orders.
• Use GitHub Actions instead of Travis CI.
• Update dependencies:

New:
  telemetry 1.2.1
Upgraded:
  decimal 1.5.0 => 2.1.1 (major)
  dialyxir 0.5.0 => 0.5.1
  earmark_parser 1.4.18 => 1.4.39
  ecto 3.0.1 => 3.11.2
  ex_doc 0.26.0 => 0.34.0 (minor)
  makeup 1.0.5 => 1.1.2
  makeup_elixir 0.15.2 => 0.16.2 (minor)
  makeup_erlang 0.1.1 => 1.0.0 (major)
  nimble_parsec 1.2.0 => 1.4.0

[mathieujobin]

should probably use "squash commits" on merge

[dmy-gh]

Any chance this can be merged @k-asm as it has been approved?

[k-asm]

@vic
could you please review & merge this? (and hopefully see #47)

[guess]

Yes can we please get this merged 🙏

[mathieujobin]

@vic do you need help reviewing PRs ?