Release/changelog line length can be too long when converted from rst snippets

[phlax]

i think we dont enforce line lenght on rst, and now that changelog snippets are rst, the lines can be too long when they are converted to yaml

one option would be to, do line mangling when converting, but that is inherently risk with rst

probably the better option is to just add some ci to ensure changelog rst snippets are not too long

[phlax]

cc @nezdolik