Release 0.1.231 beta

What's Changed

• Minor doc improvement by @wcandillon in #2082
• Minor update to the headless API by @wcandillon in #2086
• Minor update to the headless API by @NikitaDudin in #2088
• ⬆️ Update to m121 by @wcandillon in #2087
• Fix minor regression in path.interpolate by @wcandillon in #2090
• Update tests.yml concurrency group to not clash with npm publishing by @wcandillon in #2092
• Add support for nonuniform rounded rects by @wcandillon in #2100
• Revert to m119 by @wcandillon in #2102
• ⬆️ m121 by @wcandillon in #2103
• Revert "⬆️ m121" by @wcandillon in #2105

Full Changelog: v0.1.230-beta...v0.1.231-beta