Merge branch 'release/1.1.2'

Merge branch 'release/1.1.1'

Merge branch 'release/1.1.0' into main

Merge pull request adoptoposs#13 from adoptoposs/dependabot/cargo/nat…

…ive/mjml_nif/mrml-1.0.0

Bump mrml from 0.5.0 to 1.0.0 in /native/mjml_nif

Bump version to 0.3.1

Bump (c) year for 2021

Merge branch 'release/0.2.0' into main

Fix package files