feat(config/release): specify next as a pre-release channel as well

BREAKING CHANGE: the `next` branch will now be treated as pre-releases too

Author: jrolfs

src/config/release.config.js

@@ -3,8 +3,8 @@ module.exports = {
     '+([0-9])?(.{+([0-9]),x}).x',
     'main',
     'master',
-    'next',
     'next-major',
+    {name: 'next', prerelease: true},
     {name: 'alpha', prerelease: true},
     {name: 'beta', prerelease: true},
   ],