v5.0.0

• security update: Use Req instead of HTTPoison in #151
• remove support of elixir-versions: 1.12.x, 1.13.x, 1.14.x, 1.15.x
• supported elixir-versions are now: 1.16.x, 1.17.x, 1.18.x, 1.19.x, '1.20.x

Full Changelog: v4.0.4...v5.0.0