npm: Update estraverse (minor) and devDeps; switch from non-maintained rollup-plugin-babel to @rollup/plugin-babel
The build file needs updating, so I figured we might also ensure the build environment is up to date.
I've made explicit the default babelHelpers: 'bundled' behavior of @rollup/plugin-babel. (Otherwise, with the runtime option, one needs to add a dependency, and without any option, we get a console warning.)
Let me know if you don't want the estraverse dependency bump.
rollup-plugin-babelto@rollup/plugin-babelThe build file needs updating, so I figured we might also ensure the build environment is up to date.
I've made explicit the default
babelHelpers: 'bundled'behavior of@rollup/plugin-babel. (Otherwise, with theruntimeoption, one needs to add a dependency, and without any option, we get a console warning.)Let me know if you don't want the
estraversedependency bump.