Twelfth minor release of PyGMT
* Add v0.12.0 to doc/_static/version_switch.js
* Copy draft release note to doc/changes.md
* Update the order of contributors
* Add v0.12.0 to doc/minversions.md
* Update DOI badge
* Update citation information
* Sort entries
* Update the author order of Yvonne
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Co-authored-by: Wei Ji <23487320+weiji14@users.noreply.github.com>
Co-authored-by: Yvonne Fröhlich <94163266+yvonnefroehlich@users.noreply.github.com>
Co-authored-by: Michael Grund <23025878+michaelgrund@users.noreply.github.com>